11099131 has 4 divisors (see below), whose sum is σ = 11113200. Its totient is φ = 11085064.

The previous prime is 11099129. The next prime is 11099171. The reversal of 11099131 is 13199011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13199011 = 7 ⋅1885573.

It is a cyclic number.

It is not a de Polignac number, because 11099131 - 2¹ = 11099129 is a prime.

It is a super-2 number, since 2×11099131² = 246381417910322, 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 = 11099096 and 11099105.

It is not an unprimeable number, because it can be changed into a prime (11099111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5776 + ... + 7453.

It is an arithmetic number, because the mean of its divisors is an integer number (2778300).

Almost surely, 2^11099131 is an apocalyptic number.

11099131 is a deficient number, since it is larger than the sum of its proper divisors (14069).

11099131 is an equidigital number, since it uses as much as digits as its factorization.

11099131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14068.

The product of its (nonzero) digits is 243, while the sum is 25.

The square root of 11099131 is about 3331.5358320150. The cubic root of 11099131 is about 223.0640890418.

The spelling of 11099131 in words is "eleven million, ninety-nine thousand, one hundred thirty-one".