31723733070045 has 12 divisors (see below), whose sum is σ = 54987803988156. Its totient is φ = 16919324304000.

The previous prime is 31723733070019. The next prime is 31723733070179. The reversal of 31723733070045 is 54007033732713.

31723733070045 is a `hidden beast` number, since 3 + 17 + 237 + 330 + 70 + 0 + 4 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 16386781667481 + 15336951402564 = 4048059^2 + 3916242^2 .

It is not a de Polignac number, because 31723733070045 - 2¹⁸ = 31723732807901 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 704971846001 = 31723733070045 / (3 + 1 + 7 + 2 + 3 + 7 + 3 + 3 + 0 + 7 + 0 + 0 + 4 + 5).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 352485922956 + ... + 352485923045.

It is an arithmetic number, because the mean of its divisors is an integer number (4582316999013).

Almost surely, 2^{31723733070045} is an apocalyptic number.

It is an amenable number.

31723733070045 is a deficient number, since it is larger than the sum of its proper divisors (23264070918111).

31723733070045 is a wasteful number, since it uses less digits than its factorization.

31723733070045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704971846012 (or 704971846009 counting only the distinct ones).

The product of its (nonzero) digits is 1111320, while the sum is 45.

The spelling of 31723733070045 in words is "thirty-one trillion, seven hundred twenty-three billion, seven hundred thirty-three million, seventy thousand, forty-five".