203040310212 has 36 divisors (see below), whose sum is σ = 514054218496. Its totient is φ = 67572837360.

The previous prime is 203040310177. The next prime is 203040310243. The reversal of 203040310212 is 212013040302.

203040310212 is a `hidden beast` number, since 20 + 30 + 403 + 1 + 0 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4446388 + ... + 4491819.

Almost surely, 2^203040310212 is an apocalyptic number.

It is an amenable number.

203040310212 is an abundant number, since it is smaller than the sum of its proper divisors (311013908284).

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

203040310212 is a wasteful number, since it uses less digits than its factorization.

203040310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8938848 (or 8938843 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 203040310212 its reverse (212013040302), we get a palindrome (415053350514).

The spelling of 203040310212 in words is "two hundred three billion, forty million, three hundred ten thousand, two hundred twelve".