203112040 has 32 divisors (see below), whose sum is σ = 457886880. Its totient is φ = 81087552.

The previous prime is 203112037. The next prime is 203112053. The reversal of 203112040 is 40211302.

203112040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 203112040.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17239 + ... + 26521.

It is an arithmetic number, because the mean of its divisors is an integer number (14308965).

Almost surely, 2^203112040 is an apocalyptic number.

203112040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203112040 is an abundant number, since it is smaller than the sum of its proper divisors (254774840).

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

203112040 is a wasteful number, since it uses less digits than its factorization.

203112040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9841 (or 9837 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 203112040 is about 14251.7381396095. The cubic root of 203112040 is about 587.8211697986.

Adding to 203112040 its reverse (40211302), we get a palindrome (243323342).

The spelling of 203112040 in words is "two hundred three million, one hundred twelve thousand, forty".