123322312231121 has 4 divisors (see below), whose sum is σ = 123327092006244. Its totient is φ = 123317532456000.

The previous prime is 123322312231049. The next prime is 123322312231133. The reversal of 123322312231121 is 121132213223321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91094426035600 + 32227886195521 = 9544340^2 + 5676961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123322312231121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123322312233121) 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, 2389848860 + ... + 2389900461.

It is an arithmetic number, because the mean of its divisors is an integer number (30831773001561).

Almost surely, 2^{123322312231121} is an apocalyptic number.

It is an amenable number.

123322312231121 is a deficient number, since it is larger than the sum of its proper divisors (4779775123).

123322312231121 is an equidigital number, since it uses as much as digits as its factorization.

123322312231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4779775122.

The product of its digits is 5184, while the sum is 29.

Adding to 123322312231121 its reverse (121132213223321), we get a palindrome (244454525454442).

The spelling of 123322312231121 in words is "one hundred twenty-three trillion, three hundred twenty-two billion, three hundred twelve million, two hundred thirty-one thousand, one hundred twenty-one".