31056310140 has 96 divisors (see below), whose sum is σ = 87611059200. Its totient is φ = 8219667456.

The previous prime is 31056310127. The next prime is 31056310157. The reversal of 31056310140 is 4101365013.

It is a self number, because there is not a number n which added to its sum of digits gives 31056310140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5167017 + ... + 5173023.

It is an arithmetic number, because the mean of its divisors is an integer number (912615200).

Almost surely, 2^31056310140 is an apocalyptic number.

31056310140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31056310140 is an abundant number, since it is smaller than the sum of its proper divisors (56554749060).

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

31056310140 is a wasteful number, since it uses less digits than its factorization.

31056310140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6651 (or 6649 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 31056310140 its reverse (4101365013), we get a palindrome (35157675153).

The spelling of 31056310140 in words is "thirty-one billion, fifty-six million, three hundred ten thousand, one hundred forty".