203120112 has 40 divisors (see below), whose sum is σ = 565092304. Its totient is φ = 62498304.

The previous prime is 203120111. The next prime is 203120119. The reversal of 203120112 is 211021302.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203120111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162133 + ... + 163380.

Almost surely, 2^203120112 is an apocalyptic number.

It is an amenable number.

203120112 is an abundant number, since it is smaller than the sum of its proper divisors (361972192).

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

203120112 is a wasteful number, since it uses less digits than its factorization.

203120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325537 (or 325531 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 203120112 is about 14252.0213303236. The cubic root of 203120112 is about 587.8289566825.

Adding to 203120112 its reverse (211021302), we get a palindrome (414141414).

The spelling of 203120112 in words is "two hundred three million, one hundred twenty thousand, one hundred twelve".