203020012 has 24 divisors (see below), whose sum is σ = 384636672. Its totient is φ = 93206400.

The previous prime is 203020009. The next prime is 203020019. The reversal of 203020012 is 210020302.

It is not an unprimeable number, because it can be changed into a prime (203020019) 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, 289 + ... + 20152.

It is an arithmetic number, because the mean of its divisors is an integer number (16026528).

Almost surely, 2^203020012 is an apocalyptic number.

It is an amenable number.

203020012 is a deficient number, since it is larger than the sum of its proper divisors (181616660).

203020012 is a wasteful number, since it uses less digits than its factorization.

203020012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20649 (or 20647 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 203020012 is about 14248.5091149916. The cubic root of 203020012 is about 587.7323777887.

Adding to 203020012 its reverse (210020302), we get a palindrome (413040314).

The spelling of 203020012 in words is "two hundred three million, twenty thousand, twelve".