11231959 has 2 divisors, whose sum is σ = 11231960. Its totient is φ = 11231958.

The previous prime is 11231939. The next prime is 11231989. The reversal of 11231959 is 95913211.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (95913211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11231959 - 2⁹ = 11231447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11231959.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11231929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615979 + 5615980.

It is an arithmetic number, because the mean of its divisors is an integer number (5615980).

Almost surely, 2^11231959 is an apocalyptic number.

11231959 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231959 is an equidigital number, since it uses as much as digits as its factorization.

11231959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2430, while the sum is 31.

The square root of 11231959 is about 3351.4114936844. The cubic root of 11231959 is about 223.9503969141.

The spelling of 11231959 in words is "eleven million, two hundred thirty-one thousand, nine hundred fifty-nine".