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13124325031 = 192120130271
BaseRepresentation
bin11000011100100010…
…10100111010100111
31020212122201210100021
430032101110322213
5203334311400111
610010151500011
7643142631166
oct141621247247
936778653307
1013124325031
115625380714
122663387607
1313120813cc
148c708d3dd
1551c30dd71
hex30e454ea7

13124325031 has 12 divisors (see below), whose sum is σ = 13863425664. Its totient is φ = 12422808000.

The previous prime is 13124325017. The next prime is 13124325037. The reversal of 13124325031 is 13052342131.

It is a happy number.

13124325031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13124325031 - 27 = 13124324903 is a prime.

It is a super-2 number, since 2×131243250312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13124324987 and 13124325005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13124325037) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 418426 + ... + 448696.

It is an arithmetic number, because the mean of its divisors is an integer number (1155285472).

Almost surely, 213124325031 is an apocalyptic number.

13124325031 is a deficient number, since it is larger than the sum of its proper divisors (739100633).

13124325031 is a wasteful number, since it uses less digits than its factorization.

13124325031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31510 (or 31491 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 13124325031 its reverse (13052342131), we get a palindrome (26176667162).

The spelling of 13124325031 in words is "thirteen billion, one hundred twenty-four million, three hundred twenty-five thousand, thirty-one".

Divisors: 1 19 361 1201 22819 30271 433561 575149 10927831 36355471 690753949 13124325031