31523376045 has 48 divisors (see below), whose sum is σ = 61760111040. Its totient is φ = 13652222976.

The previous prime is 31523376023. The next prime is 31523376047. The reversal of 31523376045 is 54067332513.

It is not a de Polignac number, because 31523376045 - 2⁸ = 31523375789 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31523375994 and 31523376012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31523376047) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1114692 + ... + 1142621.

It is an arithmetic number, because the mean of its divisors is an integer number (1286668980).

Almost surely, 2^31523376045 is an apocalyptic number.

31523376045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

31523376045 is a deficient number, since it is larger than the sum of its proper divisors (30236734995).

31523376045 is a wasteful number, since it uses less digits than its factorization.

31523376045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2257354 (or 2257347 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 39.

The spelling of 31523376045 in words is "thirty-one billion, five hundred twenty-three million, three hundred seventy-six thousand, forty-five".