31143113432 has 16 divisors (see below), whose sum is σ = 58418971800. Its totient is φ = 15564720960.

The previous prime is 31143113431. The next prime is 31143113437. The reversal of 31143113432 is 23431134113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31143113431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 835082 + ... + 871577.

Almost surely, 2^31143113432 is an apocalyptic number.

It is an amenable number.

31143113432 is a deficient number, since it is larger than the sum of its proper divisors (27275858368).

31143113432 is a wasteful number, since it uses less digits than its factorization.

31143113432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708946 (or 1708942 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

Adding to 31143113432 its reverse (23431134113), we get a palindrome (54574247545).

The spelling of 31143113432 in words is "thirty-one billion, one hundred forty-three million, one hundred thirteen thousand, four hundred thirty-two".