123323130123021 has 6 divisors (see below), whose sum is σ = 178133410177710. Its totient is φ = 82215420082008.

The previous prime is 123323130123019. The next prime is 123323130123073. The reversal of 123323130123021 is 120321031323321.

123323130123021 is a `hidden beast` number, since 1 + 2 + 3 + 32 + 313 + 0 + 12 + 302 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 123237640550025 + 85489572996 = 11101245^2 + 292386^2 .

It is not a de Polignac number, because 123323130123021 - 2¹ = 123323130123019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123323130123821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6851285006826 + ... + 6851285006843.

It is an arithmetic number, because the mean of its divisors is an integer number (29688901696285).

Almost surely, 2^{123323130123021} is an apocalyptic number.

It is an amenable number.

123323130123021 is a deficient number, since it is larger than the sum of its proper divisors (54810280054689).

123323130123021 is a wasteful number, since it uses less digits than its factorization.

123323130123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13702570013675 (or 13702570013672 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 123323130123021 its reverse (120321031323321), we get a palindrome (243644161446342).

The spelling of 123323130123021 in words is "one hundred twenty-three trillion, three hundred twenty-three billion, one hundred thirty million, one hundred twenty-three thousand, twenty-one".