13311621376 has 27 divisors (see below), whose sum is σ = 26574929563. Its totient is φ = 6654887680.

The previous prime is 13311621373. The next prime is 13311621391. The reversal of 13311621376 is 67312611331.

The square root of 13311621376 is 115376.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13311621373) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1842411 + ... + 1849621.

Almost surely, 2^13311621376 is an apocalyptic number.

13311621376 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

13311621376 is the 115376-th square number.

It is an amenable number.

13311621376 is a deficient number, since it is larger than the sum of its proper divisors (13263308187).

13311621376 is an frugal number, since it uses more digits than its factorization.

13311621376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14438 (or 7213 counting only the distinct ones).

The product of its digits is 13608, while the sum is 34.

The spelling of 13311621376 in words is "thirteen billion, three hundred eleven million, six hundred twenty-one thousand, three hundred seventy-six".