123415251053540 has 24 divisors (see below), whose sum is σ = 259342199323200. Its totient is φ = 49333686686048.

The previous prime is 123415251053537. The next prime is 123415251053569. The reversal of 123415251053540 is 45350152514321.

It is a super-3 number, since 3×123415251053540³ (a number of 43 digits) contains 333 as substring.

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, 2025827240 + ... + 2025888159.

It is an arithmetic number, because the mean of its divisors is an integer number (10805924971800).

Almost surely, 2^{123415251053540} is an apocalyptic number.

123415251053540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123415251053540 is an abundant number, since it is smaller than the sum of its proper divisors (135926948269660).

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

123415251053540 is a wasteful number, since it uses less digits than its factorization.

123415251053540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4051716931 (or 4051716929 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 123415251053540 in words is "one hundred twenty-three trillion, four hundred fifteen billion, two hundred fifty-one million, fifty-three thousand, five hundred forty".