13238311 has 2 divisors, whose sum is σ = 13238312. Its totient is φ = 13238310.

The previous prime is 13238293. The next prime is 13238339. The reversal of 13238311 is 11383231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13238311 - 2⁹ = 13237799 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13238011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6619155 + 6619156.

It is an arithmetic number, because the mean of its divisors is an integer number (6619156).

Almost surely, 2^13238311 is an apocalyptic number.

13238311 is a deficient number, since it is larger than the sum of its proper divisors (1).

13238311 is an equidigital number, since it uses as much as digits as its factorization.

13238311 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 22.

The square root of 13238311 is about 3638.4489827398. The cubic root of 13238311 is about 236.5615696381.

The spelling of 13238311 in words is "thirteen million, two hundred thirty-eight thousand, three hundred eleven".