123388707 has 16 divisors (see below), whose sum is σ = 183284640. Its totient is φ = 73312512.

The previous prime is 123388697. The next prime is 123388777. The reversal of 123388707 is 707883321.

It is not a de Polignac number, because 123388707 - 2⁴ = 123388691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (123388777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53418 + ... + 55679.

It is an arithmetic number, because the mean of its divisors is an integer number (11455290).

Almost surely, 2^123388707 is an apocalyptic number.

123388707 is a deficient number, since it is larger than the sum of its proper divisors (59895933).

123388707 is a wasteful number, since it uses less digits than its factorization.

123388707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109142.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 123388707 is about 11108.0469480463. The cubic root of 123388707 is about 497.8423114877.

The spelling of 123388707 in words is "one hundred twenty-three million, three hundred eighty-eight thousand, seven hundred seven".