203201113212 has 192 divisors, whose sum is σ = 548498227200. Its totient is φ = 65006504640.

The previous prime is 203201113183. The next prime is 203201113243. The reversal of 203201113212 is 212311102302.

203201113212 is a `hidden beast` number, since 20 + 320 + 1 + 1 + 1 + 321 + 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 63 ways as a sum of consecutive naturals, for example, 205046037 + ... + 205047027.

It is an arithmetic number, because the mean of its divisors is an integer number (2856761600).

Almost surely, 2^203201113212 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 203201113212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (274249113600).

203201113212 is an abundant number, since it is smaller than the sum of its proper divisors (345297113988).

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

203201113212 is a wasteful number, since it uses less digits than its factorization.

203201113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773 (or 1765 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 203201113212 its reverse (212311102302), we get a palindrome (415512215514).

The spelling of 203201113212 in words is "two hundred three billion, two hundred one million, one hundred thirteen thousand, two hundred twelve".