2303201220 has 24 divisors (see below), whose sum is σ = 6448963584. Its totient is φ = 614186976.

The previous prime is 2303201189. The next prime is 2303201237. The reversal of 2303201220 is 221023032.

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 2303201220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19193284 + ... + 19193403.

It is an arithmetic number, because the mean of its divisors is an integer number (268706816).

Almost surely, 2^2303201220 is an apocalyptic number.

2303201220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2303201220 is an abundant number, since it is smaller than the sum of its proper divisors (4145762364).

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

2303201220 is a wasteful number, since it uses less digits than its factorization.

2303201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38386699 (or 38386697 counting only the distinct ones).

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

The square root of 2303201220 is about 47991.6786537000. The cubic root of 2303201220 is about 1320.6182480353.

Adding to 2303201220 its reverse (221023032), we get a palindrome (2524224252).

It can be divided in two parts, 230320 and 1220, that added together give a triangular number (231540 = T₆₈₀).

The spelling of 2303201220 in words is "two billion, three hundred three million, two hundred one thousand, two hundred twenty".