13311387 has 12 divisors (see below), whose sum is σ = 19637280. Its totient is φ = 8685168.

The previous prime is 13311383. The next prime is 13311409. The reversal of 13311387 is 78311331.

It is not a de Polignac number, because 13311387 - 2² = 13311383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13311387.

It is not an unprimeable number, because it can be changed into a prime (13311383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15312 + ... + 16157.

It is an arithmetic number, because the mean of its divisors is an integer number (1636440).

Almost surely, 2^13311387 is an apocalyptic number.

13311387 is a deficient number, since it is larger than the sum of its proper divisors (6325893).

13311387 is a wasteful number, since it uses less digits than its factorization.

13311387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31522 (or 31519 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 13311387 is about 3648.4773536367. The cubic root of 13311387 is about 236.9960475760.

The spelling of 13311387 in words is "thirteen million, three hundred eleven thousand, three hundred eighty-seven".