11323720 has 16 divisors (see below), whose sum is σ = 25478460. Its totient is φ = 4529472.

The previous prime is 11323709. The next prime is 11323721. The reversal of 11323720 is 2732311.

It can be written as a sum of positive squares in 2 ways, for example, as 11142244 + 181476 = 3338^2 + 426^2 .

It is not an unprimeable number, because it can be changed into a prime (11323721) 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, 141507 + ... + 141586.

Almost surely, 2^11323720 is an apocalyptic number.

11323720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11323720 is an abundant number, since it is smaller than the sum of its proper divisors (14154740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11323720 is a wasteful number, since it uses less digits than its factorization.

11323720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283104 (or 283100 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 11323720 is about 3365.0735504592. The cubic root of 11323720 is about 224.5586079196.

The spelling of 11323720 in words is "eleven million, three hundred twenty-three thousand, seven hundred twenty".