11171345239 has 2 divisors, whose sum is σ = 11171345240. Its totient is φ = 11171345238.

The previous prime is 11171345221. The next prime is 11171345281. The reversal of 11171345239 is 93254317111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11171345239 - 2³³ = 2581410647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11171345198 and 11171345207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11171345219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5585672619 + 5585672620.

It is an arithmetic number, because the mean of its divisors is an integer number (5585672620).

Almost surely, 2^11171345239 is an apocalyptic number.

11171345239 is a deficient number, since it is larger than the sum of its proper divisors (1).

11171345239 is an equidigital number, since it uses as much as digits as its factorization.

11171345239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The spelling of 11171345239 in words is "eleven billion, one hundred seventy-one million, three hundred forty-five thousand, two hundred thirty-nine".