11102031220 has 96 divisors (see below), whose sum is σ = 28240192512. Its totient is φ = 3578953728.

The previous prime is 11102031217. The next prime is 11102031229. The reversal of 11102031220 is 2213020111.

It is a self number, because there is not a number n which added to its sum of digits gives 11102031220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11102031229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3537492 + ... + 3540628.

It is an arithmetic number, because the mean of its divisors is an integer number (294168672).

Almost surely, 2^11102031220 is an apocalyptic number.

11102031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11102031220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14120096256).

11102031220 is an abundant number, since it is smaller than the sum of its proper divisors (17138161292).

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

11102031220 is a wasteful number, since it uses less digits than its factorization.

11102031220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4657 (or 4655 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11102031220 its reverse (2213020111), we get a palindrome (13315051331).

The spelling of 11102031220 in words is "eleven billion, one hundred two million, thirty-one thousand, two hundred twenty".