123124222104421 has 2 divisors, whose sum is σ = 123124222104422. Its totient is φ = 123124222104420.

The previous prime is 123124222104397. The next prime is 123124222104451. The reversal of 123124222104421 is 124401222421321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90686481473025 + 32437740631396 = 9522945^2 + 5695414^2 .

It is a cyclic number.

It is not a de Polignac number, because 123124222104421 - 2²⁹ = 123123685233509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123124222104451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61562111052210 + 61562111052211.

It is an arithmetic number, because the mean of its divisors is an integer number (61562111052211).

Almost surely, 2^{123124222104421} is an apocalyptic number.

It is an amenable number.

123124222104421 is a deficient number, since it is larger than the sum of its proper divisors (1).

123124222104421 is an equidigital number, since it uses as much as digits as its factorization.

123124222104421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 123124222104421 its reverse (124401222421321), we get a palindrome (247525444525742).

The spelling of 123124222104421 in words is "one hundred twenty-three trillion, one hundred twenty-four billion, two hundred twenty-two million, one hundred four thousand, four hundred twenty-one".