123323232121 has 4 divisors (see below), whose sum is σ = 123348389632. Its totient is φ = 123298074612.

The previous prime is 123323232103. The next prime is 123323232143. The reversal of 123323232121 is 121232323321.

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 123323232121 - 2⁵ = 123323232089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123323232421) 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, 12571401 + ... + 12581206.

It is an arithmetic number, because the mean of its divisors is an integer number (30837097408).

Almost surely, 2^123323232121 is an apocalyptic number.

It is an amenable number.

123323232121 is a deficient number, since it is larger than the sum of its proper divisors (25157511).

123323232121 is an equidigital number, since it uses as much as digits as its factorization.

123323232121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25157510.

The product of its digits is 2592, while the sum is 25.

Adding to 123323232121 its reverse (121232323321), we get a palindrome (244555555442).

The spelling of 123323232121 in words is "one hundred twenty-three billion, three hundred twenty-three million, two hundred thirty-two thousand, one hundred twenty-one".