123010311043121 has 2 divisors, whose sum is σ = 123010311043122. Its totient is φ = 123010311043120.

The previous prime is 123010311043093. The next prime is 123010311043177. The reversal of 123010311043121 is 121340113010321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117488581816225 + 5521729226896 = 10839215^2 + 2349836^2 .

It is a cyclic number.

It is not a de Polignac number, because 123010311043121 - 2²² = 123010306848817 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (123010311043181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61505155521560 + 61505155521561.

It is an arithmetic number, because the mean of its divisors is an integer number (61505155521561).

Almost surely, 2^{123010311043121} is an apocalyptic number.

It is an amenable number.

123010311043121 is a deficient number, since it is larger than the sum of its proper divisors (1).

123010311043121 is an equidigital number, since it uses as much as digits as its factorization.

123010311043121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 123010311043121 its reverse (121340113010321), we get a palindrome (244350424053442).

The spelling of 123010311043121 in words is "one hundred twenty-three trillion, ten billion, three hundred eleven million, forty-three thousand, one hundred twenty-one".