11089031 has 4 divisors (see below), whose sum is σ = 11298312. Its totient is φ = 10879752.

The previous prime is 11089009. The next prime is 11089037. The reversal of 11089031 is 13098011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13098011 = 19 ⋅689369.

It is a cyclic number.

It is not a de Polignac number, because 11089031 - 2¹⁸ = 10826887 is a prime.

It is a super-2 number, since 2×11089031² = 245933217037922, 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 = 11088988 and 11089006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11089037) 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, 104561 + ... + 104666.

It is an arithmetic number, because the mean of its divisors is an integer number (2824578).

Almost surely, 2^11089031 is an apocalyptic number.

11089031 is a deficient number, since it is larger than the sum of its proper divisors (209281).

11089031 is an equidigital number, since it uses as much as digits as its factorization.

11089031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209280.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 11089031 is about 3330.0196696116. The cubic root of 11089031 is about 222.9964071358.

The spelling of 11089031 in words is "eleven million, eighty-nine thousand, thirty-one".