12113643380 has 48 divisors (see below), whose sum is σ = 25758507600. Its totient is φ = 4784913408.

The previous prime is 12113643329. The next prime is 12113643419. The reversal of 12113643380 is 8334631121.

It can be written as a sum of positive squares in 8 ways, for example, as 137405284 + 11976238096 = 11722^2 + 109436^2 .

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, 503792 + ... + 527288.

It is an arithmetic number, because the mean of its divisors is an integer number (536635575).

Almost surely, 2^12113643380 is an apocalyptic number.

12113643380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12113643380 is an abundant number, since it is smaller than the sum of its proper divisors (13644864220).

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

12113643380 is a wasteful number, since it uses less digits than its factorization.

12113643380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23828 (or 23826 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 12113643380 in words is "twelve billion, one hundred thirteen million, six hundred forty-three thousand, three hundred eighty".