123032321 has 4 divisors (see below), whose sum is σ = 123055872. Its totient is φ = 123008772.

The previous prime is 123032317. The next prime is 123032381. The reversal of 123032321 is 123230321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123032321 - 2² = 123032317 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123032321.

It is not an unprimeable number, because it can be changed into a prime (123032381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41 + ... + 15686.

It is an arithmetic number, because the mean of its divisors is an integer number (30763968).

Almost surely, 2^123032321 is an apocalyptic number.

It is an amenable number.

123032321 is a deficient number, since it is larger than the sum of its proper divisors (23551).

123032321 is an equidigital number, since it uses as much as digits as its factorization.

123032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23550.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123032321 is about 11091.9935539109. The cubic root of 123032321 is about 497.3625400725.

Adding to 123032321 its reverse (123230321), we get a palindrome (246262642).

The spelling of 123032321 in words is "one hundred twenty-three million, thirty-two thousand, three hundred twenty-one".