203223103220 has 24 divisors (see below), whose sum is σ = 426912673824. Its totient is φ = 81261782816.

The previous prime is 203223103087. The next prime is 203223103241. The reversal of 203223103220 is 22301322302.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 203223103192 and 203223103201.

It is a congruent number.

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, 1655414 + ... + 1773933.

It is an arithmetic number, because the mean of its divisors is an integer number (17788028076).

Almost surely, 2^203223103220 is an apocalyptic number.

203223103220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203223103220 is an abundant number, since it is smaller than the sum of its proper divisors (223689570604).

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

203223103220 is a wasteful number, since it uses less digits than its factorization.

203223103220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432319 (or 3432317 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 203223103220 its reverse (22301322302), we get a palindrome (225524425522).

The spelling of 203223103220 in words is "two hundred three billion, two hundred twenty-three million, one hundred three thousand, two hundred twenty".