13111332989 has 2 divisors, whose sum is σ = 13111332990. Its totient is φ = 13111332988.

The previous prime is 13111332959. The next prime is 13111333007. The reversal of 13111332989 is 98923311131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11955672964 + 1155660025 = 109342^2 + 33995^2 .

It is a cyclic number.

It is not a de Polignac number, because 13111332989 - 2⁸ = 13111332733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13111332929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555666494 + 6555666495.

It is an arithmetic number, because the mean of its divisors is an integer number (6555666495).

Almost surely, 2^13111332989 is an apocalyptic number.

It is an amenable number.

13111332989 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111332989 is an equidigital number, since it uses as much as digits as its factorization.

13111332989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 41.

The spelling of 13111332989 in words is "thirteen billion, one hundred eleven million, three hundred thirty-two thousand, nine hundred eighty-nine".