124723856120 has 64 divisors (see below), whose sum is σ = 295566948000. Its totient is φ = 47236843008.

The previous prime is 124723856093. The next prime is 124723856141. The reversal of 124723856120 is 21658327421.

It is a super-2 number, since 2×124723856120² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1313774 + ... + 1405506.

Almost surely, 2^124723856120 is an apocalyptic number.

124723856120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124723856120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147783474000).

124723856120 is an abundant number, since it is smaller than the sum of its proper divisors (170843091880).

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

124723856120 is a wasteful number, since it uses less digits than its factorization.

124723856120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93552 (or 93548 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 124723856120 in words is "one hundred twenty-four billion, seven hundred twenty-three million, eight hundred fifty-six thousand, one hundred twenty".