123230331211121 has 2 divisors, whose sum is σ = 123230331211122. Its totient is φ = 123230331211120.

The previous prime is 123230331211111. The next prime is 123230331211153. The reversal of 123230331211121 is 121112133032321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73548119040400 + 49682212170721 = 8576020^2 + 7048561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123230331211121 is a prime.

It is not a weakly prime, because it can be changed into another prime (123230331211111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61615165605560 + 61615165605561.

It is an arithmetic number, because the mean of its divisors is an integer number (61615165605561).

Almost surely, 2^{123230331211121} is an apocalyptic number.

It is an amenable number.

123230331211121 is a deficient number, since it is larger than the sum of its proper divisors (1).

123230331211121 is an equidigital number, since it uses as much as digits as its factorization.

123230331211121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 123230331211121 its reverse (121112133032321), we get a palindrome (244342464243442).

The spelling of 123230331211121 in words is "one hundred twenty-three trillion, two hundred thirty billion, three hundred thirty-one million, two hundred eleven thousand, one hundred twenty-one".