13113391 has 2 divisors, whose sum is σ = 13113392. Its totient is φ = 13113390.

The previous prime is 13113389. The next prime is 13113407. The reversal of 13113391 is 19331131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13113391 - 2¹ = 13113389 is a prime.

It is a super-2 number, since 2×13113391² = 343922047037762, which contains 22 as substring.

Together with 13113389, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13113301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6556695 + 6556696.

It is an arithmetic number, because the mean of its divisors is an integer number (6556696).

Almost surely, 2^13113391 is an apocalyptic number.

13113391 is a deficient number, since it is larger than the sum of its proper divisors (1).

13113391 is an equidigital number, since it uses as much as digits as its factorization.

13113391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 243, while the sum is 22.

The square root of 13113391 is about 3621.2416378916. The cubic root of 13113391 is about 235.8151322036.

The spelling of 13113391 in words is "thirteen million, one hundred thirteen thousand, three hundred ninety-one".