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12101311011210 = 2354331812949029
BaseRepresentation
bin1011000000011000111001…
…0110000001100110001010
31120211212121011121201022220
42300012032112001212022
53041231441104324320
641423133204354510
72356201524262101
oct260061626014612
946755534551286
1012101311011210
113946156649043
1214353946a5a36
1369a1c19c11b5
142db9c6bc9038
1515ebb22c2e40
hexb018e58198a

12101311011210 has 64 divisors (see below), whose sum is σ = 29727921041280. Its totient is φ = 3150977437440.

The previous prime is 12101311011193. The next prime is 12101311011259. The reversal of 12101311011210 is 1211011310121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12101311011210.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2628976 + ... + 5578004.

It is an arithmetic number, because the mean of its divisors is an integer number (464498766270).

Almost surely, 212101311011210 is an apocalyptic number.

12101311011210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12101311011210 is an abundant number, since it is smaller than the sum of its proper divisors (17626610030070).

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

12101311011210 is a wasteful number, since it uses less digits than its factorization.

12101311011210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2952263.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 12101311011210 its reverse (1211011310121), we get a palindrome (13312322321331).

The spelling of 12101311011210 in words is "twelve trillion, one hundred one billion, three hundred eleven million, eleven thousand, two hundred ten".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 3181 6362 9543 15905 19086 31810 47715 95430 136783 273566 410349 683915 820698 1367830 2051745 2949029 4103490 5898058 8847087 14745145 17694174 29490290 44235435 88470870 126808247 253616494 380424741 634041235 760849482 1268082470 1902123705 3804247410 9380861249 18761722498 28142583747 46904306245 56285167494 93808612490 140712918735 281425837470 403377033707 806754067414 1210131101121 2016885168535 2420262202242 4033770337070 6050655505605 12101311011210