123313310253439 has 4 divisors (see below), whose sum is σ = 123313341135256. Its totient is φ = 123313279371624.

The previous prime is 123313310253383. The next prime is 123313310253457. The reversal of 123313310253439 is 934352013313321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123313310253439 - 2³³ = 123304720318847 is a prime.

It is a super-2 number, since 2×123313310253439² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123313310253395 and 123313310253404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123313310257439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8372829 + ... + 17796934.

It is an arithmetic number, because the mean of its divisors is an integer number (30828335283814).

Almost surely, 2^{123313310253439} is an apocalyptic number.

123313310253439 is a deficient number, since it is larger than the sum of its proper divisors (30881817).

123313310253439 is an equidigital number, since it uses as much as digits as its factorization.

123313310253439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30881816.

The product of its (nonzero) digits is 524880, while the sum is 43.

The spelling of 123313310253439 in words is "one hundred twenty-three trillion, three hundred thirteen billion, three hundred ten million, two hundred fifty-three thousand, four hundred thirty-nine".