2103203220 has 24 divisors (see below), whose sum is σ = 5888969184. Its totient is φ = 560854176.

The previous prime is 2103203213. The next prime is 2103203227. The reversal of 2103203220 is 223023012.

It is an interprime number because it is at equal distance from previous prime (2103203213) and next prime (2103203227).

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

It is a self number, because there is not a number n which added to its sum of digits gives 2103203220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103203227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17526634 + ... + 17526753.

It is an arithmetic number, because the mean of its divisors is an integer number (245373716).

Almost surely, 2^2103203220 is an apocalyptic number.

2103203220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103203220 is an abundant number, since it is smaller than the sum of its proper divisors (3785765964).

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

2103203220 is a wasteful number, since it uses less digits than its factorization.

2103203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35053399 (or 35053397 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 2103203220 is about 45860.6936275499. The cubic root of 2103203220 is about 1281.2299416412.

Adding to 2103203220 its reverse (223023012), we get a palindrome (2326226232).

The spelling of 2103203220 in words is "two billion, one hundred three million, two hundred three thousand, two hundred twenty".