12124734720 has 144 divisors (see below), whose sum is σ = 44255379840. Its totient is φ = 2771361792.

The previous prime is 12124734701. The next prime is 12124734731. The reversal of 12124734720 is 2743742121.

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, 198655 + ... + 252414.

Almost surely, 2^12124734720 is an apocalyptic number.

12124734720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12124734720 is an abundant number, since it is smaller than the sum of its proper divisors (32130645120).

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

12124734720 is an equidigital number, since it uses as much as digits as its factorization.

12124734720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451100 (or 451086 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 33.

The spelling of 12124734720 in words is "twelve billion, one hundred twenty-four million, seven hundred thirty-four thousand, seven hundred twenty".