31423994504 has 32 divisors (see below), whose sum is σ = 67566985920. Its totient is φ = 13421455296.

The previous prime is 31423994501. The next prime is 31423994507. The reversal of 31423994504 is 40549932413.

It is an interprime number because it is at equal distance from previous prime (31423994501) and next prime (31423994507).

It is a super-3 number, since 3×31423994504³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (31423994501) 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, 941174 + ... + 973989.

It is an arithmetic number, because the mean of its divisors is an integer number (2111468310).

Almost surely, 2^31423994504 is an apocalyptic number.

It is an amenable number.

31423994504 is an abundant number, since it is smaller than the sum of its proper divisors (36142991416).

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

31423994504 is a wasteful number, since it uses less digits than its factorization.

31423994504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915469 (or 1915465 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 31423994504 in words is "thirty-one billion, four hundred twenty-three million, nine hundred ninety-four thousand, five hundred four".