31540044124 has 24 divisors (see below), whose sum is σ = 55333208448. Its totient is φ = 15730603200.

The previous prime is 31540044097. The next prime is 31540044131. The reversal of 31540044124 is 42144004513.

It is a junction number, because it is equal to n+sod(n) for n = 31540044092 and 31540044101.

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, 3185109 + ... + 3194995.

It is an arithmetic number, because the mean of its divisors is an integer number (2305550352).

Almost surely, 2^31540044124 is an apocalyptic number.

It is an amenable number.

31540044124 is a deficient number, since it is larger than the sum of its proper divisors (23793164324).

31540044124 is a wasteful number, since it uses less digits than its factorization.

31540044124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11805 (or 11803 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 31540044124 its reverse (42144004513), we get a palindrome (73684048637).

The spelling of 31540044124 in words is "thirty-one billion, five hundred forty million, forty-four thousand, one hundred twenty-four".