203111111303212 has 48 divisors (see below), whose sum is σ = 412536093016320. Its totient is φ = 85704276600000.

The previous prime is 203111111303207. The next prime is 203111111303231. The reversal of 203111111303212 is 212303111111302.

203111111303212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200112414 + ... + 201124837.

It is an arithmetic number, because the mean of its divisors is an integer number (8594501937840).

Almost surely, 2^{203111111303212} is an apocalyptic number.

It is an amenable number.

203111111303212 is an abundant number, since it is smaller than the sum of its proper divisors (209424981713108).

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

203111111303212 is a wasteful number, since it uses less digits than its factorization.

203111111303212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401237542 (or 401237540 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 203111111303212 its reverse (212303111111302), we get a palindrome (415414222414514).

The spelling of 203111111303212 in words is "two hundred three trillion, one hundred eleven billion, one hundred eleven million, three hundred three thousand, two hundred twelve".