123030140035879 has 2 divisors, whose sum is σ = 123030140035880. Its totient is φ = 123030140035878.

The previous prime is 123030140035853. The next prime is 123030140035889. The reversal of 123030140035879 is 978530041030321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123030140035879 - 2²⁷ = 123030005818151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123030140035849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61515070017939 + 61515070017940.

It is an arithmetic number, because the mean of its divisors is an integer number (61515070017940).

Almost surely, 2^{123030140035879} is an apocalyptic number.

123030140035879 is a deficient number, since it is larger than the sum of its proper divisors (1).

123030140035879 is an equidigital number, since it uses as much as digits as its factorization.

123030140035879 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 123030140035879 in words is "one hundred twenty-three trillion, thirty billion, one hundred forty million, thirty-five thousand, eight hundred seventy-nine".