203442231 has 8 divisors (see below), whose sum is σ = 272473600. Its totient is φ = 135019512.

The previous prime is 203442229. The next prime is 203442241. The reversal of 203442231 is 132244302.

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

It is not a de Polignac number, because 203442231 - 2¹ = 203442229 is a prime.

It is a super-2 number, since 2×203442231² = 82777482708514722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203442198 and 203442207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203442241) 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, 151381 + ... + 152718.

It is an arithmetic number, because the mean of its divisors is an integer number (34059200).

Almost surely, 2^203442231 is an apocalyptic number.

203442231 is a deficient number, since it is larger than the sum of its proper divisors (69031369).

203442231 is a wasteful number, since it uses less digits than its factorization.

203442231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304325.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 203442231 is about 14263.3176715658. The cubic root of 203442231 is about 588.1395296855.

Adding to 203442231 its reverse (132244302), we get a palindrome (335686533).

The spelling of 203442231 in words is "two hundred three million, four hundred forty-two thousand, two hundred thirty-one".