31013032002 has 16 divisors (see below), whose sum is σ = 62185518720. Its totient is φ = 10311101552.

The previous prime is 31013031877. The next prime is 31013032003. The reversal of 31013032002 is 20023031013.

It is a super-2 number, since 2×31013032002² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31013032003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6641418 + ... + 6646085.

It is an arithmetic number, because the mean of its divisors is an integer number (3886594920).

Almost surely, 2^31013032002 is an apocalyptic number.

31013032002 is an abundant number, since it is smaller than the sum of its proper divisors (31172486718).

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

31013032002 is a wasteful number, since it uses less digits than its factorization.

31013032002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13287897.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31013032002 its reverse (20023031013), we get a palindrome (51036063015).

The spelling of 31013032002 in words is "thirty-one billion, thirteen million, thirty-two thousand, two".