203012140 has 12 divisors (see below), whose sum is σ = 426325536. Its totient is φ = 81204848.

The previous prime is 203012137. The next prime is 203012171. The reversal of 203012140 is 41210302.

It is a self number, because there is not a number n which added to its sum of digits gives 203012140.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5075284 + ... + 5075323.

It is an arithmetic number, because the mean of its divisors is an integer number (35527128).

Almost surely, 2^203012140 is an apocalyptic number.

203012140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203012140 is an abundant number, since it is smaller than the sum of its proper divisors (223313396).

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

203012140 is a wasteful number, since it uses less digits than its factorization.

203012140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10150616 (or 10150614 counting only the distinct ones).

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

The square root of 203012140 is about 14248.2328728864. The cubic root of 203012140 is about 587.7247813470.

Adding to 203012140 its reverse (41210302), we get a palindrome (244222442).

The spelling of 203012140 in words is "two hundred three million, twelve thousand, one hundred forty".