203113112 has 8 divisors (see below), whose sum is σ = 380837100. Its totient is φ = 101556552.

The previous prime is 203113111. The next prime is 203113133. The reversal of 203113112 is 211311302.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203113111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12694562 + ... + 12694577.

Almost surely, 2^203113112 is an apocalyptic number.

It is an amenable number.

203113112 is a deficient number, since it is larger than the sum of its proper divisors (177723988).

203113112 is a wasteful number, since it uses less digits than its factorization.

203113112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25389145 (or 25389141 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 203113112 is about 14251.7757490076. The cubic root of 203113112 is about 587.8222039457.

Adding to 203113112 its reverse (211311302), we get a palindrome (414424414).

The spelling of 203113112 in words is "two hundred three million, one hundred thirteen thousand, one hundred twelve".