203112412 has 12 divisors (see below), whose sum is σ = 355675320. Its totient is φ = 101490896.

The previous prime is 203112407. The next prime is 203112421. The reversal of 203112412 is 214211302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8962 + ... + 22057.

It is an arithmetic number, because the mean of its divisors is an integer number (29639610).

Almost surely, 2^203112412 is an apocalyptic number.

It is an amenable number.

203112412 is a deficient number, since it is larger than the sum of its proper divisors (152562908).

203112412 is a wasteful number, since it uses less digits than its factorization.

203112412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32660 (or 32658 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 203112412 is about 14251.7511906432. The cubic root of 203112412 is about 587.8215286635.

Adding to 203112412 its reverse (214211302), we get a palindrome (417323714).

The spelling of 203112412 in words is "two hundred three million, one hundred twelve thousand, four hundred twelve".