12117367530 has 96 divisors (see below), whose sum is σ = 32800832064. Its totient is φ = 3218558976.

The previous prime is 12117367501. The next prime is 12117367547. The reversal of 12117367530 is 3576371121.

12117367530 is a `hidden beast` number, since 1 + 2 + 117 + 3 + 6 + 7 + 530 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 614809 + ... + 634211.

It is an arithmetic number, because the mean of its divisors is an integer number (341675334).

Almost surely, 2^12117367530 is an apocalyptic number.

12117367530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12117367530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16400416032).

12117367530 is an abundant number, since it is smaller than the sum of its proper divisors (20683464534).

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

12117367530 is a wasteful number, since it uses less digits than its factorization.

12117367530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19682 (or 19670 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The spelling of 12117367530 in words is "twelve billion, one hundred seventeen million, three hundred sixty-seven thousand, five hundred thirty".