11121322020 has 48 divisors (see below), whose sum is σ = 32493605760. Its totient is φ = 2836742656.

The previous prime is 11121322007. The next prime is 11121322033. The reversal of 11121322020 is 2022312111.

It is an interprime number because it is at equal distance from previous prime (11121322007) and next prime (11121322033).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 4028085 + ... + 4030844.

It is an arithmetic number, because the mean of its divisors is an integer number (676950120).

Almost surely, 2^11121322020 is an apocalyptic number.

11121322020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121322020 is an abundant number, since it is smaller than the sum of its proper divisors (21372283740).

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

11121322020 is a wasteful number, since it uses less digits than its factorization.

11121322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8058964 (or 8058962 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 11121322020 its reverse (2022312111), we get a palindrome (13143634131).

Subtracting from 11121322020 its reverse (2022312111), we obtain a palindrome (9099009909).

The spelling of 11121322020 in words is "eleven billion, one hundred twenty-one million, three hundred twenty-two thousand, twenty".