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20125211301 = 32132319737963
BaseRepresentation
bin10010101111100011…
…100101101010100101
31220221120010122212100
4102233203211222211
5312204023230201
613125001042313
71311502321266
oct225743455245
956846118770
1020125211301
118598180138
123a97a86399
131b89607870
14d8cb9a96d
157cbc50886
hex4af8e5aa5

20125211301 has 48 divisors (see below), whose sum is σ = 32833696896. Its totient is φ = 11785834368.

The previous prime is 20125211297. The next prime is 20125211321. The reversal of 20125211301 is 10311252102.

20125211301 is a `hidden beast` number, since 2 + 0 + 12 + 521 + 130 + 1 = 666.

It is not a de Polignac number, because 20125211301 - 22 = 20125211297 is a prime.

It is a super-2 number, since 2×201252113012 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125211321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 511146 + ... + 549108.

It is an arithmetic number, because the mean of its divisors is an integer number (684035352).

Almost surely, 220125211301 is an apocalyptic number.

It is an amenable number.

20125211301 is a deficient number, since it is larger than the sum of its proper divisors (12708485595).

20125211301 is a wasteful number, since it uses less digits than its factorization.

20125211301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38202 (or 38199 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 20125211301 its reverse (10311252102), we get a palindrome (30436463403).

The spelling of 20125211301 in words is "twenty billion, one hundred twenty-five million, two hundred eleven thousand, three hundred one".

Divisors: 1 3 9 13 23 39 69 117 197 207 299 591 897 1773 2561 2691 4531 7683 13593 23049 37963 40779 58903 113889 176709 341667 493519 530127 873149 1480557 2619447 4441671 7478711 7858341 11350937 22436133 34052811 67308399 97223243 102158433 172010353 291669729 516031059 875009187 1548093177 2236134589 6708403767 20125211301