12013001320 has 32 divisors (see below), whose sum is σ = 27041853600. Its totient is φ = 4802960448.

The previous prime is 12013001291. The next prime is 12013001323. The reversal of 12013001320 is 2310031021.

It is a self number, because there is not a number n which added to its sum of digits gives 12013001320.

It is not an unprimeable number, because it can be changed into a prime (12013001323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18247 + ... + 156073.

It is an arithmetic number, because the mean of its divisors is an integer number (845057925).

Almost surely, 2^12013001320 is an apocalyptic number.

12013001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12013001320 is an abundant number, since it is smaller than the sum of its proper divisors (15028852280).

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

12013001320 is a wasteful number, since it uses less digits than its factorization.

12013001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140017 (or 140013 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12013001320 its reverse (2310031021), we get a palindrome (14323032341).

The spelling of 12013001320 in words is "twelve billion, thirteen million, one thousand, three hundred twenty".