203240512 has 28 divisors (see below), whose sum is σ = 420843456. Its totient is φ = 97201280.

The previous prime is 203240509. The next prime is 203240551. The reversal of 203240512 is 215042302.

It is a self number, because there is not a number n which added to its sum of digits gives 203240512.

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, 67564 + ... + 70507.

Almost surely, 2^203240512 is an apocalyptic number.

It is an amenable number.

203240512 is an abundant number, since it is smaller than the sum of its proper divisors (217602944).

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

203240512 is a wasteful number, since it uses less digits than its factorization.

203240512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138106 (or 138096 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 203240512 is about 14256.2446668118. The cubic root of 203240512 is about 587.9450794803.

Adding to 203240512 its reverse (215042302), we get a palindrome (418282814).

The spelling of 203240512 in words is "two hundred three million, two hundred forty thousand, five hundred twelve".