13311863 has 2 divisors, whose sum is σ = 13311864. Its totient is φ = 13311862.

The previous prime is 13311853. The next prime is 13311887. The reversal of 13311863 is 36811331.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13311863 - 2¹⁰ = 13310839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13311853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6655931 + 6655932.

It is an arithmetic number, because the mean of its divisors is an integer number (6655932).

Almost surely, 2^13311863 is an apocalyptic number.

13311863 is a deficient number, since it is larger than the sum of its proper divisors (1).

13311863 is an equidigital number, since it uses as much as digits as its factorization.

13311863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 13311863 is about 3648.5425857457. The cubic root of 13311863 is about 236.9988724450.

The spelling of 13311863 in words is "thirteen million, three hundred eleven thousand, eight hundred sixty-three".