123023444004042 has 16 divisors (see below), whose sum is σ = 246065470365312. Its totient is φ = 41004717608480.

The previous prime is 123023444004037. The next prime is 123023444004047. The reversal of 123023444004042 is 240400444320321.

It is an interprime number because it is at equal distance from previous prime (123023444004037) and next prime (123023444004047).

It is a junction number, because it is equal to n+sod(n) for n = 123023444003994 and 123023444004012.

It is not an unprimeable number, because it can be changed into a prime (123023444004047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 774178818 + ... + 774337709.

It is an arithmetic number, because the mean of its divisors is an integer number (15379091897832).

Almost surely, 2^{123023444004042} is an apocalyptic number.

123023444004042 is an abundant number, since it is smaller than the sum of its proper divisors (123042026361270).

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

123023444004042 is a wasteful number, since it uses less digits than its factorization.

123023444004042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548529773.

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 123023444004042 its reverse (240400444320321), we get a palindrome (363423888324363).

The spelling of 123023444004042 in words is "one hundred twenty-three trillion, twenty-three billion, four hundred forty-four million, four thousand, forty-two".