12013120323200 has 96 divisors (see below), whose sum is σ = 29691218038860. Its totient is φ = 4802810101760.

The previous prime is 12013120323137. The next prime is 12013120323251. The reversal of 12013120323200 is 232302131021.

It can be written as a sum of positive squares in 6 ways, for example, as 2616345070144 + 9396775253056 = 1617512^2 + 3065416^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5362232 + ... + 7264968.

Almost surely, 2^{12013120323200} is an apocalyptic number.

12013120323200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12013120323200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14845609019430).

12013120323200 is an abundant number, since it is smaller than the sum of its proper divisors (17678097715660).

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

12013120323200 is a wasteful number, since it uses less digits than its factorization.

12013120323200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1904734 (or 1904717 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12013120323200 its reverse (232302131021), we get a palindrome (12245422454221).

The spelling of 12013120323200 in words is "twelve trillion, thirteen billion, one hundred twenty million, three hundred twenty-three thousand, two hundred".