123384507 has 4 divisors (see below), whose sum is σ = 164512680. Its totient is φ = 82256336.

The previous prime is 123384493. The next prime is 123384509. The reversal of 123384507 is 705483321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123384507 - 2⁷ = 123384379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123384509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20564082 + ... + 20564087.

It is an arithmetic number, because the mean of its divisors is an integer number (41128170).

Almost surely, 2^123384507 is an apocalyptic number.

123384507 is a deficient number, since it is larger than the sum of its proper divisors (41128173).

123384507 is an equidigital number, since it uses as much as digits as its factorization.

123384507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41128172.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 123384507 is about 11107.8578943017. The cubic root of 123384507 is about 497.8366627768.

The spelling of 123384507 in words is "one hundred twenty-three million, three hundred eighty-four thousand, five hundred seven".