11120831 has 12 divisors (see below), whose sum is σ = 11749752. Its totient is φ = 10516896.

The previous prime is 11120803. The next prime is 11120843. The reversal of 11120831 is 13802111.

It is not a de Polignac number, because 11120831 - 2¹⁴ = 11104447 is a prime.

It is a super-2 number, since 2×11120831² = 247345764261122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11110831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 103880 + ... + 103986.

It is an arithmetic number, because the mean of its divisors is an integer number (979146).

Almost surely, 2^11120831 is an apocalyptic number.

11120831 is a deficient number, since it is larger than the sum of its proper divisors (628921).

11120831 is an equidigital number, since it uses as much as digits as its factorization.

11120831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 11120831 is about 3334.7909979487. The cubic root of 11120831 is about 223.2093658686.

Adding to 11120831 its reverse (13802111), we get a palindrome (24922942).

The spelling of 11120831 in words is "eleven million, one hundred twenty thousand, eight hundred thirty-one".