12113643361 has 4 divisors (see below), whose sum is σ = 12158343424. Its totient is φ = 12068943300.

The previous prime is 12113643329. The next prime is 12113643419. The reversal of 12113643361 is 16334631121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12113643361 - 2⁵ = 12113643329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12113643961) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22349625 + ... + 22350166.

It is an arithmetic number, because the mean of its divisors is an integer number (3039585856).

Almost surely, 2^12113643361 is an apocalyptic number.

It is an amenable number.

12113643361 is a deficient number, since it is larger than the sum of its proper divisors (44700063).

12113643361 is an equidigital number, since it uses as much as digits as its factorization.

12113643361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44700062.

The product of its digits is 7776, while the sum is 31.

The spelling of 12113643361 in words is "twelve billion, one hundred thirteen million, six hundred forty-three thousand, three hundred sixty-one".