203012320212 has 144 divisors (see below), whose sum is σ = 557830745472. Its totient is φ = 61881719040.

The previous prime is 203012320201. The next prime is 203012320229. The reversal of 203012320212 is 212023210302.

203012320212 is a `hidden beast` number, since 20 + 301 + 2 + 320 + 21 + 2 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23989662 + ... + 23998122.

Almost surely, 2^203012320212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203012320212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278915372736).

203012320212 is an abundant number, since it is smaller than the sum of its proper divisors (354818425260).

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

203012320212 is a wasteful number, since it uses less digits than its factorization.

203012320212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8958 (or 8953 counting only the distinct ones).

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

Adding to 203012320212 its reverse (212023210302), we get a palindrome (415035530514).

The spelling of 203012320212 in words is "two hundred three billion, twelve million, three hundred twenty thousand, two hundred twelve".