123315300453142 has 64 divisors (see below), whose sum is σ = 240421927680000. Its totient is φ = 47122697655936.

The previous prime is 123315300453131. The next prime is 123315300453167. The reversal of 123315300453142 is 241354003513321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 278044542 + ... + 278487697.

It is an arithmetic number, because the mean of its divisors is an integer number (3756592620000).

Almost surely, 2^{123315300453142} is an apocalyptic number.

123315300453142 is a deficient number, since it is larger than the sum of its proper divisors (117106627226858).

123315300453142 is a wasteful number, since it uses less digits than its factorization.

123315300453142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556532298 (or 556532284 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 37.

Adding to 123315300453142 its reverse (241354003513321), we get a palindrome (364669303966463).

The spelling of 123315300453142 in words is "one hundred twenty-three trillion, three hundred fifteen billion, three hundred million, four hundred fifty-three thousand, one hundred forty-two".