11256331 has 4 divisors (see below), whose sum is σ = 11338632. Its totient is φ = 11174032.

The previous prime is 11256319. The next prime is 11256347. The reversal of 11256331 is 13365211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11256331 - 2¹¹ = 11254283 is a prime.

It is a super-2 number, since 2×11256331² = 253409975163122, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (11206331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40945 + ... + 41218.

It is an arithmetic number, because the mean of its divisors is an integer number (2834658).

Almost surely, 2^11256331 is an apocalyptic number.

11256331 is a deficient number, since it is larger than the sum of its proper divisors (82301).

11256331 is an equidigital number, since it uses as much as digits as its factorization.

11256331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82300.

The product of its digits is 540, while the sum is 22.

The square root of 11256331 is about 3355.0456032668. The cubic root of 11256331 is about 224.1122617027.

The spelling of 11256331 in words is "eleven million, two hundred fifty-six thousand, three hundred thirty-one".