123100242321 has 16 divisors (see below), whose sum is σ = 187613843328. Its totient is φ = 70330800000.

The previous prime is 123100242301. The next prime is 123100242361. The reversal of 123100242321 is 123242001321.

It is not a de Polignac number, because 123100242321 - 2⁹ = 123100241809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (123100242301) 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, 383430 + ... + 627071.

It is an arithmetic number, because the mean of its divisors is an integer number (11725865208).

Almost surely, 2^123100242321 is an apocalyptic number.

It is an amenable number.

123100242321 is a deficient number, since it is larger than the sum of its proper divisors (64513601007).

123100242321 is a wasteful number, since it uses less digits than its factorization.

123100242321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016312.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 123100242321 its reverse (123242001321), we get a palindrome (246342243642).

The spelling of 123100242321 in words is "one hundred twenty-three billion, one hundred million, two hundred forty-two thousand, three hundred twenty-one".