11311959 has 8 divisors (see below), whose sum is σ = 15191680. Its totient is φ = 7486776.

The previous prime is 11311939. The next prime is 11311961. The reversal of 11311959 is 95911311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11311959 - 2¹¹ = 11309911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13147 + ... + 13980.

It is an arithmetic number, because the mean of its divisors is an integer number (1898960).

Almost surely, 2^11311959 is an apocalyptic number.

11311959 is a deficient number, since it is larger than the sum of its proper divisors (3879721).

11311959 is a wasteful number, since it uses less digits than its factorization.

11311959 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27269.

The product of its digits is 1215, while the sum is 30.

The square root of 11311959 is about 3363.3255863802. The cubic root of 11311959 is about 224.4808375798.

The spelling of 11311959 in words is "eleven million, three hundred eleven thousand, nine hundred fifty-nine".