201232231 has 2 divisors, whose sum is σ = 201232232. Its totient is φ = 201232230.

The previous prime is 201232219. The next prime is 201232237. The reversal of 201232231 is 132232102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201232231 - 2⁷ = 201232103 is a prime.

It is a super-2 number, since 2×201232231² = 80988821586474722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201232237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100616115 + 100616116.

It is an arithmetic number, because the mean of its divisors is an integer number (100616116).

Almost surely, 2^201232231 is an apocalyptic number.

201232231 is a deficient number, since it is larger than the sum of its proper divisors (1).

201232231 is an equidigital number, since it uses as much as digits as its factorization.

201232231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 201232231 is about 14185.6346703276. The cubic root of 201232231 is about 586.0021112575.

Adding to 201232231 its reverse (132232102), we get a palindrome (333464333).

It can be divided in two parts, 2012 and 32231, that added together give a palindrome (34243).

The spelling of 201232231 in words is "two hundred one million, two hundred thirty-two thousand, two hundred thirty-one".