11032021920 has 48 divisors (see below), whose sum is σ = 34750870560. Its totient is φ = 2941872384.

The previous prime is 11032021901. The next prime is 11032021933. The reversal of 11032021920 is 2912023011.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11491210 + ... + 11492169.

It is an arithmetic number, because the mean of its divisors is an integer number (723976470).

Almost surely, 2^11032021920 is an apocalyptic number.

11032021920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11032021920 is an abundant number, since it is smaller than the sum of its proper divisors (23718848640).

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

11032021920 is a wasteful number, since it uses less digits than its factorization.

11032021920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22983397 (or 22983389 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 11032021920 its reverse (2912023011), we get a palindrome (13944044931).

The spelling of 11032021920 in words is "eleven billion, thirty-two million, twenty-one thousand, nine hundred twenty".