11122831 has 6 divisors (see below), whose sum is σ = 11500832. Its totient is φ = 10746060.

The previous prime is 11122819. The next prime is 11122861. The reversal of 11122831 is 13822111.

It is not a de Polignac number, because 11122831 - 2⁵ = 11122799 is a prime.

It is a super-2 number, since 2×11122831² = 247434738909122, 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 = 11122799 and 11122808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122861) 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 5 ways as a sum of consecutive naturals, for example, 18270 + ... + 18868.

Almost surely, 2^11122831 is an apocalyptic number.

11122831 is a deficient number, since it is larger than the sum of its proper divisors (378001).

11122831 is an frugal number, since it uses more digits than its factorization.

11122831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1229 (or 630 counting only the distinct ones).

The product of its digits is 96, while the sum is 19.

The square root of 11122831 is about 3335.0908533352. The cubic root of 11122831 is about 223.2227459230. Note that the first 3 decimals are identical.

Adding to 11122831 its reverse (13822111), we get a palindrome (24944942).

The spelling of 11122831 in words is "eleven million, one hundred twenty-two thousand, eight hundred thirty-one".