31013231032002 has 16 divisors (see below), whose sum is σ = 62026518164832. Its totient is φ = 10337734327200.

The previous prime is 31013231032001. The next prime is 31013231032009. The reversal of 31013231032002 is 20023013231013.

It is a self number, because there is not a number n which added to its sum of digits gives 31013231032002.

It is not an unprimeable number, because it can be changed into a prime (31013231032001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9324877 + ... + 12205727.

It is an arithmetic number, because the mean of its divisors is an integer number (3876657385302).

Almost surely, 2^{31013231032002} is an apocalyptic number.

31013231032002 is an abundant number, since it is smaller than the sum of its proper divisors (31013287132830).

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

31013231032002 is a wasteful number, since it uses less digits than its factorization.

31013231032002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4675073.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31013231032002 its reverse (20023013231013), we get a palindrome (51036244263015).

The spelling of 31013231032002 in words is "thirty-one trillion, thirteen billion, two hundred thirty-one million, thirty-two thousand, two".