123012313243502 has 16 divisors (see below), whose sum is σ = 187232755168224. Its totient is φ = 60602463684000.

The previous prime is 123012313243483. The next prime is 123012313243541. The reversal of 123012313243502 is 205342313210321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 266976449 + ... + 267436812.

It is an arithmetic number, because the mean of its divisors is an integer number (11702047198014).

Almost surely, 2^{123012313243502} is an apocalyptic number.

123012313243502 is a deficient number, since it is larger than the sum of its proper divisors (64220441924722).

123012313243502 is a wasteful number, since it uses less digits than its factorization.

123012313243502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534414955.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 123012313243502 its reverse (205342313210321), we get a palindrome (328354626453823).

The spelling of 123012313243502 in words is "one hundred twenty-three trillion, twelve billion, three hundred thirteen million, two hundred forty-three thousand, five hundred two".