123313343135331 has 4 divisors (see below), whose sum is σ = 164417790847112. Its totient is φ = 82208895423552.

The previous prime is 123313343135287. The next prime is 123313343135387. The reversal of 123313343135331 is 133531343313321.

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

It is not a de Polignac number, because 123313343135331 - 2³⁴ = 123296163266147 is a prime.

It is a super-2 number, since 2×123313343135331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123313343135331.

It is not an unprimeable number, because it can be changed into a prime (123313343139331) 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, 20552223855886 + ... + 20552223855891.

It is an arithmetic number, because the mean of its divisors is an integer number (41104447711778).

Almost surely, 2^{123313343135331} is an apocalyptic number.

123313343135331 is a deficient number, since it is larger than the sum of its proper divisors (41104447711781).

123313343135331 is an equidigital number, since it uses as much as digits as its factorization.

123313343135331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41104447711780.

The product of its digits is 262440, while the sum is 39.

Adding to 123313343135331 its reverse (133531343313321), we get a palindrome (256844686448652).

The spelling of 123313343135331 in words is "one hundred twenty-three trillion, three hundred thirteen billion, three hundred forty-three million, one hundred thirty-five thousand, three hundred thirty-one".