31013331002 has 16 divisors (see below), whose sum is σ = 47344521600. Its totient is φ = 15232224480.

The previous prime is 31013330969. The next prime is 31013331007. The reversal of 31013331002 is 20013331013.

It is a super-2 number, since 2×31013331002² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31013331007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56399 + ... + 255357.

It is an arithmetic number, because the mean of its divisors is an integer number (2959032600).

Almost surely, 2^31013331002 is an apocalyptic number.

31013331002 is a deficient number, since it is larger than the sum of its proper divisors (16331190598).

31013331002 is a wasteful number, since it uses less digits than its factorization.

31013331002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200341.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 31013331002 its reverse (20013331013), we get a palindrome (51026662015).

The spelling of 31013331002 in words is "thirty-one billion, thirteen million, three hundred thirty-one thousand, two".