11306831 has 4 divisors (see below), whose sum is σ = 11314200. Its totient is φ = 11299464.

The previous prime is 11306809. The next prime is 11306873. The reversal of 11306831 is 13860311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13860311 = 37 ⋅374603.

It is a cyclic number.

It is not a de Polignac number, because 11306831 - 2¹⁸ = 11044687 is a prime.

It is a super-2 number, since 2×11306831² = 255688854525122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11306797 and 11306806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11306891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416 + ... + 4773.

It is an arithmetic number, because the mean of its divisors is an integer number (2828550).

Almost surely, 2^11306831 is an apocalyptic number.

11306831 is a deficient number, since it is larger than the sum of its proper divisors (7369).

11306831 is an equidigital number, since it uses as much as digits as its factorization.

11306831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7368.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 11306831 is about 3362.5631592581. The cubic root of 11306831 is about 224.4469114866.

The spelling of 11306831 in words is "eleven million, three hundred six thousand, eight hundred thirty-one".