11900923 has 4 divisors (see below), whose sum is σ = 11910040. Its totient is φ = 11891808.

The previous prime is 11900909. The next prime is 11900927. The reversal of 11900923 is 32900911.

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: 32900911 = 4139 ⋅7949.

It is a cyclic number.

It is not a de Polignac number, because 11900923 - 2⁵ = 11900891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11900927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2190 + ... + 5347.

It is an arithmetic number, because the mean of its divisors is an integer number (2977510).

Almost surely, 2^11900923 is an apocalyptic number.

11900923 is a deficient number, since it is larger than the sum of its proper divisors (9117).

11900923 is an equidigital number, since it uses as much as digits as its factorization.

11900923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9116.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 11900923 is about 3449.7714417045. The cubic root of 11900923 is about 228.3110239213.

The spelling of 11900923 in words is "eleven million, nine hundred thousand, nine hundred twenty-three".