123427056240 has 60 divisors (see below), whose sum is σ = 414509199624. Its totient is φ = 32913881472.

The previous prime is 123427056217. The next prime is 123427056257. The reversal of 123427056240 is 42650724321.

123427056240 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 27 + 0 + 5 + 624 + 0 = 666.

123427056240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 123427056195 and 123427056204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85712514 + ... + 85713953.

Almost surely, 2^123427056240 is an apocalyptic number.

123427056240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123427056240 is an abundant number, since it is smaller than the sum of its proper divisors (291082143384).

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

123427056240 is a wasteful number, since it uses less digits than its factorization.

123427056240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171426486 (or 171426477 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 123427056240 in words is "one hundred twenty-three billion, four hundred twenty-seven million, fifty-six thousand, two hundred forty".