31004041331 has 48 divisors (see below), whose sum is σ = 35898027264. Its totient is φ = 26688771648.

The previous prime is 31004041309. The next prime is 31004041339. The reversal of 31004041331 is 13314040013.

It is not a de Polignac number, because 31004041331 - 2⁶ = 31004041267 is a prime.

It is a super-2 number, since 2×31004041331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31004041339) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13208900 + ... + 13211246.

It is an arithmetic number, because the mean of its divisors is an integer number (747875568).

Almost surely, 2^31004041331 is an apocalyptic number.

31004041331 is a deficient number, since it is larger than the sum of its proper divisors (4893985933).

31004041331 is a wasteful number, since it uses less digits than its factorization.

31004041331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488 (or 2469 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31004041331 its reverse (13314040013), we get a palindrome (44318081344).

The spelling of 31004041331 in words is "thirty-one billion, four million, forty-one thousand, three hundred thirty-one".