123311212240344 has 64 divisors (see below), whose sum is σ = 321755396256000. Its totient is φ = 39307577248896.

The previous prime is 123311212240343. The next prime is 123311212240393. The reversal of 123311212240344 is 443042212113321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123311212240343) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23282254 + ... + 28083549.

It is an arithmetic number, because the mean of its divisors is an integer number (5027428066500).

Almost surely, 2^{123311212240344} is an apocalyptic number.

It is an amenable number.

123311212240344 is an abundant number, since it is smaller than the sum of its proper divisors (198444184015656).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123311212240344 is a wasteful number, since it uses less digits than its factorization.

123311212240344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51370184 (or 51370180 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 33.

Adding to 123311212240344 its reverse (443042212113321), we get a palindrome (566353424353665).

The spelling of 123311212240344 in words is "one hundred twenty-three trillion, three hundred eleven billion, two hundred twelve million, two hundred forty thousand, three hundred forty-four".