11056321020 has 48 divisors (see below), whose sum is σ = 31094114688. Its totient is φ = 2935360320.

The previous prime is 11056321013. The next prime is 11056321051. The reversal of 11056321020 is 2012365011.

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, 392266 + ... + 419505.

It is an arithmetic number, because the mean of its divisors is an integer number (647794056).

Almost surely, 2^11056321020 is an apocalyptic number.

11056321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11056321020 is an abundant number, since it is smaller than the sum of its proper divisors (20037793668).

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

11056321020 is a wasteful number, since it uses less digits than its factorization.

11056321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812010 (or 812008 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 11056321020 its reverse (2012365011), we get a palindrome (13068686031).

The spelling of 11056321020 in words is "eleven billion, fifty-six million, three hundred twenty-one thousand, twenty".