123012079 has 4 divisors (see below), whose sum is σ = 123217360. Its totient is φ = 122806800.

The previous prime is 123012053. The next prime is 123012083. The reversal of 123012079 is 970210321.

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 123012079 - 2⁷ = 123011951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012089) 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, 101739 + ... + 102940.

It is an arithmetic number, because the mean of its divisors is an integer number (30804340).

Almost surely, 2^123012079 is an apocalyptic number.

123012079 is a deficient number, since it is larger than the sum of its proper divisors (205281).

123012079 is an equidigital number, since it uses as much as digits as its factorization.

123012079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205280.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 123012079 is about 11091.0810564165. The cubic root of 123012079 is about 497.3352622411.

The spelling of 123012079 in words is "one hundred twenty-three million, twelve thousand, seventy-nine".