203320220 has 12 divisors (see below), whose sum is σ = 426972504. Its totient is φ = 81328080.

The previous prime is 203320213. The next prime is 203320231. The reversal of 203320220 is 22023302.

It is a super-2 number, since 2×203320220² = 82678223721696800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203320195 and 203320204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5082986 + ... + 5083025.

It is an arithmetic number, because the mean of its divisors is an integer number (35581042).

Almost surely, 2^203320220 is an apocalyptic number.

203320220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203320220 is an abundant number, since it is smaller than the sum of its proper divisors (223652284).

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

203320220 is a wasteful number, since it uses less digits than its factorization.

203320220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10166020 (or 10166018 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 203320220 is about 14259.0399396313. The cubic root of 203320220 is about 588.0219306304.

Adding to 203320220 its reverse (22023302), we get a palindrome (225343522).

The spelling of 203320220 in words is "two hundred three million, three hundred twenty thousand, two hundred twenty".