31512145103044 has 24 divisors (see below), whose sum is σ = 55164471703488. Its totient is φ = 15750867931680.

The previous prime is 31512145103041. The next prime is 31512145103077. The reversal of 31512145103044 is 44030154121513.

It is not an unprimeable number, because it can be changed into a prime (31512145103041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370527294 + ... + 370612330.

It is an arithmetic number, because the mean of its divisors is an integer number (2298519654312).

Almost surely, 2^{31512145103044} is an apocalyptic number.

It is an amenable number.

31512145103044 is a deficient number, since it is larger than the sum of its proper divisors (23652326600444).

31512145103044 is a wasteful number, since it uses less digits than its factorization.

31512145103044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114555 (or 114553 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 31512145103044 its reverse (44030154121513), we get a palindrome (75542299224557).

The spelling of 31512145103044 in words is "thirty-one trillion, five hundred twelve billion, one hundred forty-five million, one hundred three thousand, forty-four".