12012383380 has 24 divisors (see below), whose sum is σ = 25232767560. Its totient is φ = 4803665280.

The previous prime is 12012383377. The next prime is 12012383399. The reversal of 12012383380 is 8338321021.

It can be written as a sum of positive squares in 4 ways, for example, as 3353336464 + 8659046916 = 57908^2 + 93054^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2175 + ... + 155014.

It is an arithmetic number, because the mean of its divisors is an integer number (1051365315).

Almost surely, 2^12012383380 is an apocalyptic number.

12012383380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012383380 is an abundant number, since it is smaller than the sum of its proper divisors (13220384180).

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

12012383380 is a wasteful number, since it uses less digits than its factorization.

12012383380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161019 (or 161017 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 12012383380 in words is "twelve billion, twelve million, three hundred eighty-three thousand, three hundred eighty".