123001224240042 has 12 divisors (see below), whose sum is σ = 266502652520130. Its totient is φ = 41000408080008.

The previous prime is 123001224240031. The next prime is 123001224240043. The reversal of 123001224240042 is 240042422100321.

It is a happy number.

123001224240042 is a `hidden beast` number, since 1 + 2 + 3 + 0 + 0 + 12 + 242 + 400 + 4 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 118683136084041 + 4318088156001 = 10894179^2 + 2078001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123001224239988 and 123001224240015.

It is not an unprimeable number, because it can be changed into a prime (123001224240043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3416700673317 + ... + 3416700673352.

Almost surely, 2^{123001224240042} is an apocalyptic number.

123001224240042 is an abundant number, since it is smaller than the sum of its proper divisors (143501428280088).

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

123001224240042 is a wasteful number, since it uses less digits than its factorization.

123001224240042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6833401346677 (or 6833401346674 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 123001224240042 its reverse (240042422100321), we get a palindrome (363043646340363).

The spelling of 123001224240042 in words is "one hundred twenty-three trillion, one billion, two hundred twenty-four million, two hundred forty thousand, forty-two".