123712625507 has 4 divisors (see below), whose sum is σ = 123902078880. Its totient is φ = 123523172136.

The previous prime is 123712625489. The next prime is 123712625557. The reversal of 123712625507 is 705526217321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 705526217321 = 23 ⋅30675052927.

It is a cyclic number.

It is not a de Polignac number, because 123712625507 - 2⁸ = 123712625251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123712625557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94725707 + ... + 94727012.

It is an arithmetic number, because the mean of its divisors is an integer number (30975519720).

Almost surely, 2^123712625507 is an apocalyptic number.

123712625507 is a deficient number, since it is larger than the sum of its proper divisors (189453373).

123712625507 is an equidigital number, since it uses as much as digits as its factorization.

123712625507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189453372.

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 123712625507 in words is "one hundred twenty-three billion, seven hundred twelve million, six hundred twenty-five thousand, five hundred seven".