12117299361 has 16 divisors (see below), whose sum is σ = 16879008960. Its totient is φ = 7722411200.

The previous prime is 12117299353. The next prime is 12117299377. The reversal of 12117299361 is 16399271121.

It is a cyclic number.

It is not a de Polignac number, because 12117299361 - 2³ = 12117299353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12117295361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680715 + ... + 698288.

It is an arithmetic number, because the mean of its divisors is an integer number (1054938060).

Almost surely, 2^12117299361 is an apocalyptic number.

It is an amenable number.

12117299361 is a deficient number, since it is larger than the sum of its proper divisors (4761709599).

12117299361 is a wasteful number, since it uses less digits than its factorization.

12117299361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1379136.

The product of its digits is 40824, while the sum is 42.

The spelling of 12117299361 in words is "twelve billion, one hundred seventeen million, two hundred ninety-nine thousand, three hundred sixty-one".