201332231 has 4 divisors (see below), whose sum is σ = 201384192. Its totient is φ = 201280272.

The previous prime is 201332171. The next prime is 201332233. The reversal of 201332231 is 132233102.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132233102 = 2 ⋅66116551.

It is a cyclic number.

It is not a de Polignac number, because 201332231 - 2¹⁸ = 201070087 is a prime.

It is a super-2 number, since 2×201332231² = 81069334478874722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201332233) 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, 19655 + ... + 28088.

It is an arithmetic number, because the mean of its divisors is an integer number (50346048).

Almost surely, 2^201332231 is an apocalyptic number.

201332231 is a deficient number, since it is larger than the sum of its proper divisors (51961).

201332231 is an equidigital number, since it uses as much as digits as its factorization.

201332231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51960.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 201332231 is about 14189.1589250385. The cubic root of 201332231 is about 586.0991641445.

Adding to 201332231 its reverse (132233102), we get a palindrome (333565333).

The spelling of 201332231 in words is "two hundred one million, three hundred thirty-two thousand, two hundred thirty-one".