203321322112 has 16 divisors (see below), whose sum is σ = 405054196650. Its totient is φ = 101660660992.

The previous prime is 203321322053. The next prime is 203321322167. The reversal of 203321322112 is 211223123302.

It can be written as a sum of positive squares in only one way, i.e., 144807647296 + 58513674816 = 380536^2 + 241896^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 794223787 + ... + 794224042.

Almost surely, 2^203321322112 is an apocalyptic number.

It is an amenable number.

203321322112 is a deficient number, since it is larger than the sum of its proper divisors (201732874538).

203321322112 is an equidigital number, since it uses as much as digits as its factorization.

203321322112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588447843 (or 1588447831 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 203321322112 its reverse (211223123302), we get a palindrome (414544445414).

The spelling of 203321322112 in words is "two hundred three billion, three hundred twenty-one million, three hundred twenty-two thousand, one hundred twelve".