2113003220 has 48 divisors (see below), whose sum is σ = 4596359040. Its totient is φ = 814982784.

The previous prime is 2113003199. The next prime is 2113003223. The reversal of 2113003220 is 223003112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2113003195 and 2113003204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113003223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547337 + ... + 551183.

It is an arithmetic number, because the mean of its divisors is an integer number (95757480).

Almost surely, 2^2113003220 is an apocalyptic number.

2113003220 is a gapful number since it is divisible by the number (20) 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 2113003220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2298179520).

2113003220 is an abundant number, since it is smaller than the sum of its proper divisors (2483355820).

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

2113003220 is a wasteful number, since it uses less digits than its factorization.

2113003220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4832 (or 4830 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2113003220 is about 45967.4147630688. The cubic root of 2113003220 is about 1283.2168477319.

Adding to 2113003220 its reverse (223003112), we get a palindrome (2336006332).

The spelling of 2113003220 in words is "two billion, one hundred thirteen million, three thousand, two hundred twenty".