12013220313 has 6 divisors (see below), whose sum is σ = 17352429354. Its totient is φ = 8008813536.

The previous prime is 12013220281. The next prime is 12013220369. The reversal of 12013220313 is 31302231021.

12013220313 is a `hidden beast` number, since 120 + 13 + 220 + 313 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11498701824 + 514518489 = 107232^2 + 22683^2 .

It is not a de Polignac number, because 12013220313 - 2⁵ = 12013220281 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12013220213) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 667401120 + ... + 667401137.

It is an arithmetic number, because the mean of its divisors is an integer number (2892071559).

Almost surely, 2^12013220313 is an apocalyptic number.

It is an amenable number.

12013220313 is a deficient number, since it is larger than the sum of its proper divisors (5339209041).

12013220313 is a wasteful number, since it uses less digits than its factorization.

12013220313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334802263 (or 1334802260 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12013220313 its reverse (31302231021), we get a palindrome (43315451334).

The spelling of 12013220313 in words is "twelve billion, thirteen million, two hundred twenty thousand, three hundred thirteen".