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12131220524150 = 25271312720993719
BaseRepresentation
bin1011000010001000010100…
…0101110000110001110110
31120221201210121122101210102
42300202011011300301312
53042224214423233100
641445001125154102
72361310645036220
oct260420505606166
946851717571712
1012131220524150
1139579047a8882
12143b14125b932
1369cc7a3c3750
142dd2231db410
15160862ec5cd5
hexb0885170c76

12131220524150 has 96 divisors (see below), whose sum is σ = 27989835202560. Its totient is φ = 3809100193920.

The previous prime is 12131220524147. The next prime is 12131220524167. The reversal of 12131220524150 is 5142502213121.

It is a super-2 number, since 2×121312205241502 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9919010 + ... + 11074709.

It is an arithmetic number, because the mean of its divisors is an integer number (291560783360).

Almost surely, 212131220524150 is an apocalyptic number.

12131220524150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12131220524150 is an abundant number, since it is smaller than the sum of its proper divisors (15858614678410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12131220524150 is a wasteful number, since it uses less digits than its factorization.

12131220524150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20993878 (or 20993873 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 12131220524150 its reverse (5142502213121), we get a palindrome (17273722737271).

The spelling of 12131220524150 in words is "twelve trillion, one hundred thirty-one billion, two hundred twenty million, five hundred twenty-four thousand, one hundred fifty".

Divisors: 1 2 5 7 10 13 14 25 26 35 50 65 70 91 127 130 175 182 254 325 350 455 635 650 889 910 1270 1651 1778 2275 3175 3302 4445 4550 6350 8255 8890 11557 16510 22225 23114 41275 44450 57785 82550 115570 288925 577850 20993719 41987438 104968595 146956033 209937190 272918347 293912066 524842975 545836694 734780165 1049685950 1364591735 1469560330 1910428429 2666202313 2729183470 3673900825 3820856858 5332404626 6822958675 7347801650 9552142145 13331011565 13645917350 18663416191 19104284290 26662023130 34660630069 37326832382 47760710725 66655057825 69321260138 93317080955 95521421450 133310115650 173303150345 186634161910 242624410483 346606300690 466585404775 485248820966 866515751725 933170809550 1213122052415 1733031503450 2426244104830 6065610262075 12131220524150