13316231 has 2 divisors, whose sum is σ = 13316232. Its totient is φ = 13316230.

The previous prime is 13316213. The next prime is 13316243. The reversal of 13316231 is 13261331.

It is a happy number.

Together with previous prime (13316213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (13261331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13316231 - 2⁶ = 13316167 is a prime.

It is a super-2 number, since 2×13316231² = 354644016090722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13316731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6658115 + 6658116.

It is an arithmetic number, because the mean of its divisors is an integer number (6658116).

Almost surely, 2^13316231 is an apocalyptic number.

13316231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13316231 is an equidigital number, since it uses as much as digits as its factorization.

13316231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 20.

The square root of 13316231 is about 3649.1411318281. The cubic root of 13316231 is about 237.0247916288.

Adding to 13316231 its reverse (13261331), we get a palindrome (26577562).

The spelling of 13316231 in words is "thirteen million, three hundred sixteen thousand, two hundred thirty-one".