203112302212 has 6 divisors (see below), whose sum is σ = 355446528878. Its totient is φ = 101556151104.

The previous prime is 203112302207. The next prime is 203112302243. The reversal of 203112302212 is 212203211302.

It can be written as a sum of positive squares in only one way, i.e., 153237799936 + 49874502276 = 391456^2 + 223326^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 203112302212.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25389037773 + ... + 25389037780.

Almost surely, 2^203112302212 is an apocalyptic number.

It is an amenable number.

203112302212 is a deficient number, since it is larger than the sum of its proper divisors (152334226666).

203112302212 is a wasteful number, since it uses less digits than its factorization.

203112302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50778075557 (or 50778075555 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 203112302212 its reverse (212203211302), we get a palindrome (415315513514).

The spelling of 203112302212 in words is "two hundred three billion, one hundred twelve million, three hundred two thousand, two hundred twelve".