201203231 has 4 divisors (see below), whose sum is σ = 201345072. Its totient is φ = 201061392.

The previous prime is 201203227. The next prime is 201203263. The reversal of 201203231 is 132302102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201203231 - 2² = 201203227 is a prime.

It is a super-2 number, since 2×201203231² = 80965480329678722, 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 (201203201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68771 + ... + 71636.

It is an arithmetic number, because the mean of its divisors is an integer number (50336268).

Almost surely, 2^201203231 is an apocalyptic number.

201203231 is a deficient number, since it is larger than the sum of its proper divisors (141841).

201203231 is a wasteful number, since it uses less digits than its factorization.

201203231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141840.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 201203231 is about 14184.6124726762. The cubic root of 201203231 is about 585.9739599063.

Adding to 201203231 its reverse (132302102), we get a palindrome (333505333).

The spelling of 201203231 in words is "two hundred one million, two hundred three thousand, two hundred thirty-one".