123144001120042 has 64 divisors (see below), whose sum is σ = 217789101319680. Its totient is φ = 51135946848000.

The previous prime is 123144001120027. The next prime is 123144001120097. The reversal of 123144001120042 is 240021100441321.

It is a junction number, because it is equal to n+sod(n) for n = 123144001119989 and 123144001120016.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13368459 + ... + 20615617.

It is an arithmetic number, because the mean of its divisors is an integer number (3402954708120).

Almost surely, 2^{123144001120042} is an apocalyptic number.

123144001120042 is a deficient number, since it is larger than the sum of its proper divisors (94645100199638).

123144001120042 is a wasteful number, since it uses less digits than its factorization.

123144001120042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7247527.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 123144001120042 its reverse (240021100441321), we get a palindrome (363165101561363).

The spelling of 123144001120042 in words is "one hundred twenty-three trillion, one hundred forty-four billion, one million, one hundred twenty thousand, forty-two".