203031111112012 has 12 divisors (see below), whose sum is σ = 357484226314936. Its totient is φ = 100892760736320.

The previous prime is 203031111112003. The next prime is 203031111112019. The reversal of 203031111112012 is 210211111130302.

203031111112012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (203031111112019) 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, 155698704189 + ... + 155698705492.

Almost surely, 2^{203031111112012} is an apocalyptic number.

It is an amenable number.

203031111112012 is a deficient number, since it is larger than the sum of its proper divisors (154453115202924).

203031111112012 is a wasteful number, since it uses less digits than its factorization.

203031111112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311397409848 (or 311397409846 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 203031111112012 its reverse (210211111130302), we get a palindrome (413242222242314).

The spelling of 203031111112012 in words is "two hundred three trillion, thirty-one billion, one hundred eleven million, one hundred twelve thousand, twelve".