123572313 has 12 divisors (see below), whose sum is σ = 178652500. Its totient is φ = 82308096.

The previous prime is 123572311. The next prime is 123572327. The reversal of 123572313 is 313275321.

It can be written as a sum of positive squares in 2 ways, for example, as 34609689 + 88962624 = 5883^2 + 9432^2 .

It is not a de Polignac number, because 123572313 - 2¹ = 123572311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123572311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5745 + ... + 16737.

Almost surely, 2^123572313 is an apocalyptic number.

It is an amenable number.

123572313 is a deficient number, since it is larger than the sum of its proper divisors (55080187).

123572313 is a wasteful number, since it uses less digits than its factorization.

123572313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12248 (or 12245 counting only the distinct ones).

The product of its digits is 3780, while the sum is 27.

The square root of 123572313 is about 11116.3084250123. The cubic root of 123572313 is about 498.0891237405.

The spelling of 123572313 in words is "one hundred twenty-three million, five hundred seventy-two thousand, three hundred thirteen".