123204122140402 has 32 divisors (see below), whose sum is σ = 185369738515200. Its totient is φ = 61414464722688.

The previous prime is 123204122140399. The next prime is 123204122140417. The reversal of 123204122140402 is 204041221402321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10640301849 + ... + 10640313427.

It is an arithmetic number, because the mean of its divisors is an integer number (5792804328600).

Almost surely, 2^{123204122140402} is an apocalyptic number.

123204122140402 is a deficient number, since it is larger than the sum of its proper divisors (62165616374798).

123204122140402 is a wasteful number, since it uses less digits than its factorization.

123204122140402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21250.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 123204122140402 its reverse (204041221402321), we get a palindrome (327245343542723).

The spelling of 123204122140402 in words is "one hundred twenty-three trillion, two hundred four billion, one hundred twenty-two million, one hundred forty thousand, four hundred two".