123243351311344 has 40 divisors (see below), whose sum is σ = 261452852732160. Its totient is φ = 55812990340800.

The previous prime is 123243351311329. The next prime is 123243351311347. The reversal of 123243351311344 is 443113153342321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 123243351311297 and 123243351311306.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123243351311347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1291919674 + ... + 1292015065.

It is an arithmetic number, because the mean of its divisors is an integer number (6536321318304).

Almost surely, 2^{123243351311344} is an apocalyptic number.

It is an amenable number.

123243351311344 is an abundant number, since it is smaller than the sum of its proper divisors (138209501420816).

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

123243351311344 is a wasteful number, since it uses less digits than its factorization.

123243351311344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2583935029 (or 2583935023 counting only the distinct ones).

The product of its digits is 311040, while the sum is 40.

The spelling of 123243351311344 in words is "one hundred twenty-three trillion, two hundred forty-three billion, three hundred fifty-one million, three hundred eleven thousand, three hundred forty-four".