31000418404 has 24 divisors (see below), whose sum is σ = 55084684928. Its totient is φ = 15262140960.

The previous prime is 31000418401. The next prime is 31000418419. The reversal of 31000418404 is 40481400013.

It is a super-2 number, since 2×31000418404² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31000418401) 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, 614374 + ... + 662914.

Almost surely, 2^31000418404 is an apocalyptic number.

It is an amenable number.

31000418404 is a deficient number, since it is larger than the sum of its proper divisors (24084266524).

31000418404 is a wasteful number, since it uses less digits than its factorization.

31000418404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50995 (or 50993 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 31000418404 its reverse (40481400013), we get a palindrome (71481818417).

The spelling of 31000418404 in words is "thirty-one billion, four hundred eighteen thousand, four hundred four".