212331203203 has 4 divisors (see below), whose sum is σ = 242664232240. Its totient is φ = 181998174168.

The previous prime is 212331203197. The next prime is 212331203219. The reversal of 212331203203 is 302302133212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212331203203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212331203233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15166514508 + ... + 15166514521.

It is an arithmetic number, because the mean of its divisors is an integer number (60666058060).

Almost surely, 2^212331203203 is an apocalyptic number.

212331203203 is a deficient number, since it is larger than the sum of its proper divisors (30333029037).

212331203203 is an equidigital number, since it uses as much as digits as its factorization.

212331203203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30333029036.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 212331203203 its reverse (302302133212), we get a palindrome (514633336415).

The spelling of 212331203203 in words is "two hundred twelve billion, three hundred thirty-one million, two hundred three thousand, two hundred three".