123416732540 has 48 divisors (see below), whose sum is σ = 262245846240. Its totient is φ = 48782469120.

The previous prime is 123416732531. The next prime is 123416732573. The reversal of 123416732540 is 45237614321.

It is a junction number, because it is equal to n+sod(n) for n = 123416732494 and 123416732503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3046820 + ... + 3087060.

It is an arithmetic number, because the mean of its divisors is an integer number (5463455130).

Almost surely, 2^123416732540 is an apocalyptic number.

123416732540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123416732540 is an abundant number, since it is smaller than the sum of its proper divisors (138829113700).

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

123416732540 is a wasteful number, since it uses less digits than its factorization.

123416732540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42062 (or 42060 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 123416732540 in words is "one hundred twenty-three billion, four hundred sixteen million, seven hundred thirty-two thousand, five hundred forty".