13031443169 has 2 divisors, whose sum is σ = 13031443170. Its totient is φ = 13031443168.

The previous prime is 13031443133. The next prime is 13031443171. The reversal of 13031443169 is 96134413031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10813504144 + 2217939025 = 103988^2 + 47095^2 .

It is a cyclic number.

It is not a de Polignac number, because 13031443169 - 2³² = 8736475873 is a prime.

It is a super-2 number, since 2×13031443169² (a number of 21 digits) contains 22 as substring.

Together with 13031443171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13031443199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6515721584 + 6515721585.

It is an arithmetic number, because the mean of its divisors is an integer number (6515721585).

Almost surely, 2^13031443169 is an apocalyptic number.

It is an amenable number.

13031443169 is a deficient number, since it is larger than the sum of its proper divisors (1).

13031443169 is an equidigital number, since it uses as much as digits as its factorization.

13031443169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 13031443169 in words is "thirteen billion, thirty-one million, four hundred forty-three thousand, one hundred sixty-nine".