123372017 has 2 divisors, whose sum is σ = 123372018. Its totient is φ = 123372016.

The previous prime is 123371999. The next prime is 123372047. The reversal of 123372017 is 710273321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122855056 + 516961 = 11084^2 + 719^2 .

It is a cyclic number.

It is not a de Polignac number, because 123372017 - 2¹⁴ = 123355633 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123372047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61686008 + 61686009.

It is an arithmetic number, because the mean of its divisors is an integer number (61686009).

Almost surely, 2^123372017 is an apocalyptic number.

It is an amenable number.

123372017 is a deficient number, since it is larger than the sum of its proper divisors (1).

123372017 is an equidigital number, since it uses as much as digits as its factorization.

123372017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 123372017 is about 11107.2956654624. The cubic root of 123372017 is about 497.8198638288.

The spelling of 123372017 in words is "one hundred twenty-three million, three hundred seventy-two thousand, seventeen".