31243434032 has 20 divisors (see below), whose sum is σ = 62170212816. Its totient is φ = 15199508160.

The previous prime is 31243434007. The next prime is 31243434043. The reversal of 31243434032 is 23043434213.

It is a super-2 number, since 2×31243434032² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31243433986 and 31243434004.

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, 26387444 + ... + 26388627.

Almost surely, 2^31243434032 is an apocalyptic number.

It is an amenable number.

31243434032 is a deficient number, since it is larger than the sum of its proper divisors (30926778784).

31243434032 is a wasteful number, since it uses less digits than its factorization.

31243434032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52776116 (or 52776110 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 31243434032 its reverse (23043434213), we get a palindrome (54286868245).

The spelling of 31243434032 in words is "thirty-one billion, two hundred forty-three million, four hundred thirty-four thousand, thirty-two".