123200023405142 has 4 divisors (see below), whose sum is σ = 184800035107716. Its totient is φ = 61600011702570.

The previous prime is 123200023405133. The next prime is 123200023405159. The reversal of 123200023405142 is 241504320002321.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30800005851284 + ... + 30800005851287.

It is an arithmetic number, because the mean of its divisors is an integer number (46200008776929).

Almost surely, 2^{123200023405142} is an apocalyptic number.

123200023405142 is a deficient number, since it is larger than the sum of its proper divisors (61600011702574).

123200023405142 is an equidigital number, since it uses as much as digits as its factorization.

123200023405142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61600011702573.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 123200023405142 its reverse (241504320002321), we get a palindrome (364704343407463).

The spelling of 123200023405142 in words is "one hundred twenty-three trillion, two hundred billion, twenty-three million, four hundred five thousand, one hundred forty-two".