203102220 has 48 divisors (see below), whose sum is σ = 569828448. Its totient is φ = 54051840.

The previous prime is 203102177. The next prime is 203102239. The reversal of 203102220 is 22201302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 203102196 and 203102205.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29332 + ... + 35588.

It is an arithmetic number, because the mean of its divisors is an integer number (11871426).

Almost surely, 2^203102220 is an apocalyptic number.

203102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203102220 is an abundant number, since it is smaller than the sum of its proper divisors (366726228).

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

203102220 is a wasteful number, since it uses less digits than its factorization.

203102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6810 (or 6808 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 203102220 is about 14251.3936160644. The cubic root of 203102220 is about 587.8116963787.

Adding to 203102220 its reverse (22201302), we get a palindrome (225303522).

The spelling of 203102220 in words is "two hundred three million, one hundred two thousand, two hundred twenty".