31130129652 has 48 divisors (see below), whose sum is σ = 73120051200. Its totient is φ = 10307852640.

The previous prime is 31130129651. The next prime is 31130129669. The reversal of 31130129652 is 25692103113.

It is a super-2 number, since 2×31130129652² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31130129651) 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 15 ways as a sum of consecutive naturals, for example, 1684599 + ... + 1702977.

It is an arithmetic number, because the mean of its divisors is an integer number (1523334400).

Almost surely, 2^31130129652 is an apocalyptic number.

It is an amenable number.

31130129652 is an abundant number, since it is smaller than the sum of its proper divisors (41989921548).

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

31130129652 is a wasteful number, since it uses less digits than its factorization.

31130129652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19316 (or 19314 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The spelling of 31130129652 in words is "thirty-one billion, one hundred thirty million, one hundred twenty-nine thousand, six hundred fifty-two".