203213230111 has 4 divisors (see below), whose sum is σ = 203214390912. Its totient is φ = 203212069312.

The previous prime is 203213230093. The next prime is 203213230147. The reversal of 203213230111 is 111032312302.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 203213230111 - 2⁹ = 203213229599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203213230411) 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, 258175 + ... + 687808.

It is an arithmetic number, because the mean of its divisors is an integer number (50803597728).

Almost surely, 2^203213230111 is an apocalyptic number.

203213230111 is a deficient number, since it is larger than the sum of its proper divisors (1160801).

203213230111 is an equidigital number, since it uses as much as digits as its factorization.

203213230111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160800.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 203213230111 its reverse (111032312302), we get a palindrome (314245542413).

The spelling of 203213230111 in words is "two hundred three billion, two hundred thirteen million, two hundred thirty thousand, one hundred eleven".