123203132321 has 16 divisors (see below), whose sum is σ = 132748815360. Its totient is φ = 114008938560.

The previous prime is 123203132267. The next prime is 123203132323. The reversal of 123203132321 is 123231302321.

It is a cyclic number.

It is not a de Polignac number, because 123203132321 - 2²² = 123198938017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123203132323) 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, 2379335 + ... + 2430563.

It is an arithmetic number, because the mean of its divisors is an integer number (8296800960).

Almost surely, 2^123203132321 is an apocalyptic number.

It is an amenable number.

123203132321 is a deficient number, since it is larger than the sum of its proper divisors (9545683039).

123203132321 is a wasteful number, since it uses less digits than its factorization.

123203132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54656.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123203132321 its reverse (123231302321), we get a palindrome (246434434642).

The spelling of 123203132321 in words is "one hundred twenty-three billion, two hundred three million, one hundred thirty-two thousand, three hundred twenty-one".