123042240320 has 56 divisors (see below), whose sum is σ = 293792964864. Its totient is φ = 49082743296.

The previous prime is 123042240313. The next prime is 123042240341. The reversal of 123042240320 is 23042240321.

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, 406412 + ... + 641291.

It is an arithmetic number, because the mean of its divisors is an integer number (5246302944).

Almost surely, 2^123042240320 is an apocalyptic number.

123042240320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123042240320 is an abundant number, since it is smaller than the sum of its proper divisors (170750724544).

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

123042240320 is a wasteful number, since it uses less digits than its factorization.

123042240320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1048087 (or 1048077 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 123042240320 its reverse (23042240321), we get a palindrome (146084480641).

Subtracting from 123042240320 its reverse (23042240321), we obtain a palindrome (99999999999).

The spelling of 123042240320 in words is "one hundred twenty-three billion, forty-two million, two hundred forty thousand, three hundred twenty".