123979323 has 16 divisors (see below), whose sum is σ = 183766016. Its totient is φ = 73833120.

The previous prime is 123979301. The next prime is 123979333. The reversal of 123979323 is 323979321.

It is not a de Polignac number, because 123979323 - 2⁶ = 123979259 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 (123979333) 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, 50065 + ... + 52482.

It is an arithmetic number, because the mean of its divisors is an integer number (11485376).

Almost surely, 2^123979323 is an apocalyptic number.

123979323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123979323 is a deficient number, since it is larger than the sum of its proper divisors (59786693).

123979323 is a wasteful number, since it uses less digits than its factorization.

123979323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102594.

The product of its digits is 61236, while the sum is 39.

The square root of 123979323 is about 11134.6002622456. The cubic root of 123979323 is about 498.6353763261.

The spelling of 123979323 in words is "one hundred twenty-three million, nine hundred seventy-nine thousand, three hundred twenty-three".