11920723 has 4 divisors (see below), whose sum is σ = 12621960. Its totient is φ = 11219488.

The previous prime is 11920721. The next prime is 11920747. The reversal of 11920723 is 32702911.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11920723 - 2¹ = 11920721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11920721) 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, 350593 + ... + 350626.

It is an arithmetic number, because the mean of its divisors is an integer number (3155490).

Almost surely, 2^11920723 is an apocalyptic number.

11920723 is a deficient number, since it is larger than the sum of its proper divisors (701237).

11920723 is an equidigital number, since it uses as much as digits as its factorization.

11920723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701236.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 11920723 is about 3452.6400044024. The cubic root of 11920723 is about 228.4375702287.

The spelling of 11920723 in words is "eleven million, nine hundred twenty thousand, seven hundred twenty-three".