123313303542321 has 6 divisors (see below), whose sum is σ = 178119216227810. Its totient is φ = 82208869028208.

The previous prime is 123313303542313. The next prime is 123313303542389. The reversal of 123313303542321 is 123245303313321.

123313303542321 is a `hidden beast` number, since 1 + 2 + 3 + 313 + 303 + 5 + 4 + 2 + 32 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 121493742656400 + 1819560885921 = 11022420^2 + 1348911^2 .

It is not a de Polignac number, because 123313303542321 - 2³ = 123313303542313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123313303542391) 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 in 5 ways as a sum of consecutive naturals, for example, 6850739085676 + ... + 6850739085693.

Almost surely, 2^{123313303542321} is an apocalyptic number.

It is an amenable number.

123313303542321 is a deficient number, since it is larger than the sum of its proper divisors (54805912685489).

123313303542321 is a wasteful number, since it uses less digits than its factorization.

123313303542321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13701478171375 (or 13701478171372 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 36.

Adding to 123313303542321 its reverse (123245303313321), we get a palindrome (246558606855642).

The spelling of 123313303542321 in words is "one hundred twenty-three trillion, three hundred thirteen billion, three hundred three million, five hundred forty-two thousand, three hundred twenty-one".