203321012312 has 16 divisors (see below), whose sum is σ = 415883889000. Its totient is φ = 92418641920.

The previous prime is 203321012273. The next prime is 203321012341. The reversal of 203321012312 is 213210123302.

203321012312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 1155232937 + ... + 1155233112.

Almost surely, 2^203321012312 is an apocalyptic number.

203321012312 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

203321012312 is an abundant number, since it is smaller than the sum of its proper divisors (212562876688).

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

203321012312 is a wasteful number, since it uses less digits than its factorization.

203321012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310466066 (or 2310466062 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203321012312 its reverse (213210123302), we get a palindrome (416531135614).

The spelling of 203321012312 in words is "two hundred three billion, three hundred twenty-one million, twelve thousand, three hundred twelve".