10991083 has 4 divisors (see below), whose sum is σ = 11031040. Its totient is φ = 10951128.

The previous prime is 10991077. The next prime is 10991089. The reversal of 10991083 is 38019901.

10991083 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38019901 = 3847 ⋅9883.

It is an interprime number because it is at equal distance from previous prime (10991077) and next prime (10991089).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10991083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10991089) 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, 19563 + ... + 20116.

It is an arithmetic number, because the mean of its divisors is an integer number (2757760).

Almost surely, 2^10991083 is an apocalyptic number.

10991083 is a deficient number, since it is larger than the sum of its proper divisors (39957).

10991083 is an equidigital number, since it uses as much as digits as its factorization.

10991083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39956.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 10991083 is about 3315.2802294829. The cubic root of 10991083 is about 222.3378981735.

The spelling of 10991083 in words is "ten million, nine hundred ninety-one thousand, eighty-three".