203021220230 has 16 divisors (see below), whose sum is σ = 365493996144. Its totient is φ = 81196088160.

The previous prime is 203021220221. The next prime is 203021220247. The reversal of 203021220230 is 32022120302.

It is a super-2 number, since 2×203021220230² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203021220199 and 203021220208.

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, 1481081 + ... + 1612340.

It is an arithmetic number, because the mean of its divisors is an integer number (22843374759).

Almost surely, 2^203021220230 is an apocalyptic number.

203021220230 is a deficient number, since it is larger than the sum of its proper divisors (162472775914).

203021220230 is a wasteful number, since it uses less digits than its factorization.

203021220230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099991.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 203021220230 its reverse (32022120302), we get a palindrome (235043340532).

The spelling of 203021220230 in words is "two hundred three billion, twenty-one million, two hundred twenty thousand, two hundred thirty".