123310212101999 has 32 divisors (see below), whose sum is σ = 134014933750656. Its totient is φ = 112783889687040.

The previous prime is 123310212101983. The next prime is 123310212102031. The reversal of 123310212101999 is 999101212013321.

It is not a de Polignac number, because 123310212101999 - 2⁴ = 123310212101983 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 (123310212101929) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3258104894 + ... + 3258142740.

It is an arithmetic number, because the mean of its divisors is an integer number (4187966679708).

Almost surely, 2^{123310212101999} is an apocalyptic number.

123310212101999 is a deficient number, since it is larger than the sum of its proper divisors (10704721648657).

123310212101999 is a wasteful number, since it uses less digits than its factorization.

123310212101999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42435.

The product of its (nonzero) digits is 52488, while the sum is 44.

The spelling of 123310212101999 in words is "one hundred twenty-three trillion, three hundred ten billion, two hundred twelve million, one hundred one thousand, nine hundred ninety-nine".