123012202451142 has 16 divisors (see below), whose sum is σ = 246074237735472. Its totient is φ = 40995762011520.

The previous prime is 123012202451129. The next prime is 123012202451183. The reversal of 123012202451142 is 241154202210321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2076335959 + ... + 2076395202.

It is an arithmetic number, because the mean of its divisors is an integer number (15379639858467).

Almost surely, 2^{123012202451142} is an apocalyptic number.

123012202451142 is an abundant number, since it is smaller than the sum of its proper divisors (123062035284330).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123012202451142 is a wasteful number, since it uses less digits than its factorization.

123012202451142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152736103.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 123012202451142 its reverse (241154202210321), we get a palindrome (364166404661463).

The spelling of 123012202451142 in words is "one hundred twenty-three trillion, twelve billion, two hundred two million, four hundred fifty-one thousand, one hundred forty-two".