13220367316 has 12 divisors (see below), whose sum is σ = 24915307732. Its totient is φ = 6101707968.

The previous prime is 13220367311. The next prime is 13220367331. The reversal of 13220367316 is 61376302231.

It can be written as a sum of positive squares in 2 ways, for example, as 3114086416 + 10106280900 = 55804^2 + 100530^2 .

It is a super-2 number, since 2×13220367316² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220367311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127118865 + ... + 127118968.

Almost surely, 2^13220367316 is an apocalyptic number.

It is an amenable number.

13220367316 is a deficient number, since it is larger than the sum of its proper divisors (11694940416).

13220367316 is a wasteful number, since it uses less digits than its factorization.

13220367316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254237850 (or 254237848 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

Adding to 13220367316 its reverse (61376302231), we get a palindrome (74596669547).

The spelling of 13220367316 in words is "thirteen billion, two hundred twenty million, three hundred sixty-seven thousand, three hundred sixteen".