31032422004 has 24 divisors (see below), whose sum is σ = 72426790240. Its totient is φ = 10341597024.

The previous prime is 31032421967. The next prime is 31032422009. The reversal of 31032422004 is 40022423013.

It is a super-2 number, since 2×31032422004² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31032422009) 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, 266794 + ... + 365025.

Almost surely, 2^31032422004 is an apocalyptic number.

It is an amenable number.

31032422004 is an abundant number, since it is smaller than the sum of its proper divisors (41394368236).

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

31032422004 is a wasteful number, since it uses less digits than its factorization.

31032422004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635919 (or 635917 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 31032422004 its reverse (40022423013), we get a palindrome (71054845017).

The spelling of 31032422004 in words is "thirty-one billion, thirty-two million, four hundred twenty-two thousand, four".