31423203032 has 16 divisors (see below), whose sum is σ = 63450698640. Its totient is φ = 14503016736.

The previous prime is 31423203017. The next prime is 31423203167. The reversal of 31423203032 is 23030232413.

It is a junction number, because it is equal to n+sod(n) for n = 31423202989 and 31423203007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151072988 + ... + 151073195.

It is an arithmetic number, because the mean of its divisors is an integer number (3965668665).

Almost surely, 2^31423203032 is an apocalyptic number.

It is an amenable number.

31423203032 is an abundant number, since it is smaller than the sum of its proper divisors (32027495608).

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

31423203032 is a wasteful number, since it uses less digits than its factorization.

31423203032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302146202 (or 302146198 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 31423203032 its reverse (23030232413), we get a palindrome (54453435445).

The spelling of 31423203032 in words is "thirty-one billion, four hundred twenty-three million, two hundred three thousand, thirty-two".