201433231 has 8 divisors (see below), whose sum is σ = 216036720. Its totient is φ = 187229952.

The previous prime is 201433201. The next prime is 201433237. The reversal of 201433231 is 132334102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201433231 - 2²¹ = 199336079 is a prime.

It is a super-2 number, since 2×201433231² = 81150693102198722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201433199 and 201433208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201433237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99010 + ... + 101023.

It is an arithmetic number, because the mean of its divisors is an integer number (27004590).

Almost surely, 2^201433231 is an apocalyptic number.

201433231 is a deficient number, since it is larger than the sum of its proper divisors (14603489).

201433231 is a wasteful number, since it uses less digits than its factorization.

201433231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200105.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 201433231 is about 14192.7175340031. The cubic root of 201433231 is about 586.1971549453.

Adding to 201433231 its reverse (132334102), we get a palindrome (333767333).

It can be divided in two parts, 2014 and 33231, that added together give a triangular number (35245 = T₂₆₅).

The spelling of 201433231 in words is "two hundred one million, four hundred thirty-three thousand, two hundred thirty-one".