13244444231 has 2 divisors, whose sum is σ = 13244444232. Its totient is φ = 13244444230.

The previous prime is 13244444219. The next prime is 13244444237.

13244444231 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13244444231 is a prime.

It is a super-2 number, since 2×13244444231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13244444237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6622222115 + 6622222116.

It is an arithmetic number, because the mean of its divisors is an integer number (6622222116).

Almost surely, 2^13244444231 is an apocalyptic number.

13244444231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13244444231 is an equidigital number, since it uses as much as digits as its factorization.

13244444231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 32.

The spelling of 13244444231 in words is "thirteen billion, two hundred forty-four million, four hundred forty-four thousand, two hundred thirty-one".