203322320012 has 12 divisors (see below), whose sum is σ = 406644640080. Its totient is φ = 87138137136.

The previous prime is 203322320011. The next prime is 203322320077. The reversal of 203322320012 is 210023223302.

203322320012 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (203322320011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3630755687 + ... + 3630755742.

It is an arithmetic number, because the mean of its divisors is an integer number (33887053340).

Almost surely, 2^203322320012 is an apocalyptic number.

It is an amenable number.

203322320012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

203322320012 is a wasteful number, since it uses less digits than its factorization.

203322320012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7261511440 (or 7261511438 counting only the distinct ones).

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

Adding to 203322320012 its reverse (210023223302), we get a palindrome (413345543314).

The spelling of 203322320012 in words is "two hundred three billion, three hundred twenty-two million, three hundred twenty thousand, twelve".