11023920 has 120 divisors (see below), whose sum is σ = 37778832. Its totient is φ = 2880000.

The previous prime is 11023919. The next prime is 11023927. The reversal of 11023920 is 2932011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11023893 and 11023902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11023927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43795 + ... + 44045.

Almost surely, 2^11023920 is an apocalyptic number.

11023920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11023920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18889416).

11023920 is an abundant number, since it is smaller than the sum of its proper divisors (26754912).

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

11023920 is a wasteful number, since it uses less digits than its factorization.

11023920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 11023920 is about 3320.2289077713. The cubic root of 11023920 is about 222.5590972087.

Adding to 11023920 its reverse (2932011), we get a palindrome (13955931).

The spelling of 11023920 in words is "eleven million, twenty-three thousand, nine hundred twenty".