31542144024 has 32 divisors (see below), whose sum is σ = 79620952320. Its totient is φ = 10411969056.

The previous prime is 31542143981. The next prime is 31542144037. The reversal of 31542144024 is 42044124513.

It is a junction number, because it is equal to n+sod(n) for n = 31542143982 and 31542144000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6377412 + ... + 6382355.

It is an arithmetic number, because the mean of its divisors is an integer number (2488154760).

Almost surely, 2^31542144024 is an apocalyptic number.

It is an amenable number.

31542144024 is an abundant number, since it is smaller than the sum of its proper divisors (48078808296).

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

31542144024 is a wasteful number, since it uses less digits than its factorization.

31542144024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12759879 (or 12759875 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 31542144024 its reverse (42044124513), we get a palindrome (73586268537).

The spelling of 31542144024 in words is "thirty-one billion, five hundred forty-two million, one hundred forty-four thousand, twenty-four".