123342320240 has 40 divisors (see below), whose sum is σ = 287393043168. Its totient is φ = 49229891840.

The previous prime is 123342320237. The next prime is 123342320261. The reversal of 123342320240 is 42023243321.

It is a tau number, because it is divible by the number of its divisors (40).

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, 1635332 + ... + 1709091.

Almost surely, 2^123342320240 is an apocalyptic number.

123342320240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123342320240 is an abundant number, since it is smaller than the sum of its proper divisors (164050722928).

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

123342320240 is a wasteful number, since it uses less digits than its factorization.

123342320240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344897 (or 3344891 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 123342320240 its reverse (42023243321), we get a palindrome (165365563561).

The spelling of 123342320240 in words is "one hundred twenty-three billion, three hundred forty-two million, three hundred twenty thousand, two hundred forty".