123230301011999 has 4 divisors (see below), whose sum is σ = 129716106328440. Its totient is φ = 116744495695560.

The previous prime is 123230301011977. The next prime is 123230301012001. The reversal of 123230301011999 is 999110103032321.

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 123230301011999 - 2⁸ = 123230301011743 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 (123230301011299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3242902658192 + ... + 3242902658229.

It is an arithmetic number, because the mean of its divisors is an integer number (32429026582110).

Almost surely, 2^{123230301011999} is an apocalyptic number.

123230301011999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

123230301011999 is a deficient number, since it is larger than the sum of its proper divisors (6485805316441).

123230301011999 is an equidigital number, since it uses as much as digits as its factorization.

123230301011999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6485805316440.

The product of its (nonzero) digits is 78732, while the sum is 44.

The spelling of 123230301011999 in words is "one hundred twenty-three trillion, two hundred thirty billion, three hundred one million, eleven thousand, nine hundred ninety-nine".