203211310223 has 16 divisors (see below), whose sum is σ = 217117269600. Its totient is φ = 189646842240.

The previous prime is 203211310207. The next prime is 203211310249. The reversal of 203211310223 is 322013112302.

It is a cyclic number.

It is not a de Polignac number, because 203211310223 - 2⁴ = 203211310207 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203211310195 and 203211310204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203211310273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74693 + ... + 641873.

It is an arithmetic number, because the mean of its divisors is an integer number (13569829350).

Almost surely, 2^203211310223 is an apocalyptic number.

203211310223 is a deficient number, since it is larger than the sum of its proper divisors (13905959377).

203211310223 is a wasteful number, since it uses less digits than its factorization.

203211310223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567482.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203211310223 its reverse (322013112302), we get a palindrome (525224422525).

The spelling of 203211310223 in words is "two hundred three billion, two hundred eleven million, three hundred ten thousand, two hundred twenty-three".