13400231191 has 2 divisors, whose sum is σ = 13400231192. Its totient is φ = 13400231190.

The previous prime is 13400231189. The next prime is 13400231261. The reversal of 13400231191 is 19113200431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13400231191 - 2¹ = 13400231189 is a prime.

Together with 13400231189, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13400231111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6700115595 + 6700115596.

It is an arithmetic number, because the mean of its divisors is an integer number (6700115596).

Almost surely, 2^13400231191 is an apocalyptic number.

13400231191 is a deficient number, since it is larger than the sum of its proper divisors (1).

13400231191 is an equidigital number, since it uses as much as digits as its factorization.

13400231191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 13400231191 in words is "thirteen billion, four hundred million, two hundred thirty-one thousand, one hundred ninety-one".