11021032020 has 48 divisors (see below), whose sum is σ = 30943035648. Its totient is φ = 2930928000.

The previous prime is 11021032007. The next prime is 11021032031. The reversal of 11021032020 is 2023012011.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 11021031987 and 11021032005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228231 + ... + 272270.

It is an arithmetic number, because the mean of its divisors is an integer number (644646576).

Almost surely, 2^11021032020 is an apocalyptic number.

11021032020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11021032020 is an abundant number, since it is smaller than the sum of its proper divisors (19922003628).

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

11021032020 is a wasteful number, since it uses less digits than its factorization.

11021032020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 500880 (or 500878 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 11021032020 its reverse (2023012011), we get a palindrome (13044044031).

The spelling of 11021032020 in words is "eleven billion, twenty-one million, thirty-two thousand, twenty".