11190923 has 4 divisors (see below), whose sum is σ = 11197680. Its totient is φ = 11184168.

The previous prime is 11190917. The next prime is 11190929. The reversal of 11190923 is 32909111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 32909111 = 4729 ⋅6959.

It is an interprime number because it is at equal distance from previous prime (11190917) and next prime (11190929).

It is a cyclic number.

It is not a de Polignac number, because 11190923 - 2⁸ = 11190667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11190892 and 11190901.

It is not an unprimeable number, because it can be changed into a prime (11190929) 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, 986 + ... + 4832.

It is an arithmetic number, because the mean of its divisors is an integer number (2799420).

Almost surely, 2^11190923 is an apocalyptic number.

11190923 is a deficient number, since it is larger than the sum of its proper divisors (6757).

11190923 is an equidigital number, since it uses as much as digits as its factorization.

11190923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6756.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 11190923 is about 3345.2836949951. The cubic root of 11190923 is about 223.6773295833.

The spelling of 11190923 in words is "eleven million, one hundred ninety thousand, nine hundred twenty-three".