11931923 has 8 divisors (see below), whose sum is σ = 12254400. Its totient is φ = 11613888.

The previous prime is 11931919. The next prime is 11931929. The reversal of 11931923 is 32913911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11931923 - 2² = 11931919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11931929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4733 + ... + 6801.

It is an arithmetic number, because the mean of its divisors is an integer number (1531800).

Almost surely, 2^11931923 is an apocalyptic number.

11931923 is a deficient number, since it is larger than the sum of its proper divisors (322477).

11931923 is an equidigital number, since it uses as much as digits as its factorization.

11931923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221.

The product of its digits is 1458, while the sum is 29.

The square root of 11931923 is about 3454.2615708716. The cubic root of 11931923 is about 228.5090899381.

The spelling of 11931923 in words is "eleven million, nine hundred thirty-one thousand, nine hundred twenty-three".