1113024220 has 144 divisors (see below), whose sum is σ = 2985873408. Its totient is φ = 344615040.

The previous prime is 1113024197. The next prime is 1113024247. The reversal of 1113024220 is 224203111.

It is a junction number, because it is equal to n+sod(n) for n = 1113024194 and 1113024203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2403709 + ... + 2404171.

It is an arithmetic number, because the mean of its divisors is an integer number (20735232).

Almost surely, 2^1113024220 is an apocalyptic number.

1113024220 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 1113024220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1492936704).

1113024220 is an abundant number, since it is smaller than the sum of its proper divisors (1872849188).

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

1113024220 is a wasteful number, since it uses less digits than its factorization.

1113024220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1113024220 is about 33362.0176248380. The cubic root of 1113024220 is about 1036.3382752172.

Adding to 1113024220 its reverse (224203111), we get a palindrome (1337227331).

The spelling of 1113024220 in words is "one billion, one hundred thirteen million, twenty-four thousand, two hundred twenty".