123013203142015 has 16 divisors (see below), whose sum is σ = 147926839219200. Its totient is φ = 98203388177952.

The previous prime is 123013203142013. The next prime is 123013203142019. The reversal of 123013203142015 is 510241302310321.

It is a cyclic number.

It is not a de Polignac number, because 123013203142015 - 2¹ = 123013203142013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123013203142013) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3435687 + ... + 16057096.

It is an arithmetic number, because the mean of its divisors is an integer number (9245427451200).

Almost surely, 2^{123013203142015} is an apocalyptic number.

123013203142015 is a deficient number, since it is larger than the sum of its proper divisors (24913636077185).

123013203142015 is a wasteful number, since it uses less digits than its factorization.

123013203142015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19495446.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 123013203142015 its reverse (510241302310321), we get a palindrome (633254505452336).

The spelling of 123013203142015 in words is "one hundred twenty-three trillion, thirteen billion, two hundred three million, one hundred forty-two thousand, fifteen".