123013203023534 has 16 divisors (see below), whose sum is σ = 197020135078272. Its totient is φ = 57464206062648.

The previous prime is 123013203023533. The next prime is 123013203023537. The reversal of 123013203023534 is 435320302310321.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 123013203023534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123013203023533) 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, 31095347624 + ... + 31095351579.

It is an arithmetic number, because the mean of its divisors is an integer number (12313758442392).

Almost surely, 2^{123013203023534} is an apocalyptic number.

123013203023534 is a deficient number, since it is larger than the sum of its proper divisors (74006932054738).

123013203023534 is a wasteful number, since it uses less digits than its factorization.

123013203023534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62190699271.

The product of its (nonzero) digits is 38880, while the sum is 32.

Adding to 123013203023534 its reverse (435320302310321), we get a palindrome (558333505333855).

The spelling of 123013203023534 in words is "one hundred twenty-three trillion, thirteen billion, two hundred three million, twenty-three thousand, five hundred thirty-four".