11250111391 has 2 divisors, whose sum is σ = 11250111392. Its totient is φ = 11250111390.

The previous prime is 11250111349. The next prime is 11250111421. The reversal of 11250111391 is 19311105211.

It is a strong prime.

It is an emirp because it is prime and its reverse (19311105211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11250111391 - 2⁷ = 11250111263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11250111991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5625055695 + 5625055696.

It is an arithmetic number, because the mean of its divisors is an integer number (5625055696).

Almost surely, 2^11250111391 is an apocalyptic number.

11250111391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11250111391 is an equidigital number, since it uses as much as digits as its factorization.

11250111391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 25.

The spelling of 11250111391 in words is "eleven billion, two hundred fifty million, one hundred eleven thousand, three hundred ninety-one".