13231022249 has 2 divisors, whose sum is σ = 13231022250. Its totient is φ = 13231022248.

The previous prime is 13231022221. The next prime is 13231022257. The reversal of 13231022249 is 94222013231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13049635225 + 181387024 = 114235^2 + 13468^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13231022249 is a prime.

It is not a weakly prime, because it can be changed into another prime (13231021249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6615511124 + 6615511125.

It is an arithmetic number, because the mean of its divisors is an integer number (6615511125).

Almost surely, 2^13231022249 is an apocalyptic number.

It is an amenable number.

13231022249 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231022249 is an equidigital number, since it uses as much as digits as its factorization.

13231022249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 13231022249 in words is "thirteen billion, two hundred thirty-one million, twenty-two thousand, two hundred forty-nine".