13242431249 has 2 divisors, whose sum is σ = 13242431250. Its totient is φ = 13242431248.

The previous prime is 13242431219. The next prime is 13242431329. The reversal of 13242431249 is 94213424231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10481664400 + 2760766849 = 102380^2 + 52543^2 .

It is a cyclic number.

It is not a de Polignac number, because 13242431249 - 2¹² = 13242427153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13242431219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6621215624 + 6621215625.

It is an arithmetic number, because the mean of its divisors is an integer number (6621215625).

Almost surely, 2^13242431249 is an apocalyptic number.

It is an amenable number.

13242431249 is a deficient number, since it is larger than the sum of its proper divisors (1).

13242431249 is an equidigital number, since it uses as much as digits as its factorization.

13242431249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 35.

The spelling of 13242431249 in words is "thirteen billion, two hundred forty-two million, four hundred thirty-one thousand, two hundred forty-nine".