11012920 has 16 divisors (see below), whose sum is σ = 24779160. Its totient is φ = 4405152.

The previous prime is 11012909. The next prime is 11012927. The reversal of 11012920 is 2921011.

It is a junction number, because it is equal to n+sod(n) for n = 11012894 and 11012903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012927) 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, 137622 + ... + 137701.

Almost surely, 2^11012920 is an apocalyptic number.

11012920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11012920 is an abundant number, since it is smaller than the sum of its proper divisors (13766240).

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

11012920 is a wasteful number, since it uses less digits than its factorization.

11012920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275334 (or 275330 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 11012920 is about 3318.5719820429. The cubic root of 11012920 is about 222.4850471793.

Adding to 11012920 its reverse (2921011), we get a palindrome (13933931).

The spelling of 11012920 in words is "eleven million, twelve thousand, nine hundred twenty".