231322203 has 32 divisors (see below), whose sum is σ = 400005120. Its totient is φ = 129366720.

The previous prime is 231322199. The next prime is 231322211. The reversal of 231322203 is 302223132.

It is a happy number.

It is not a de Polignac number, because 231322203 - 2² = 231322199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231322243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4138 + ... + 21903.

It is an arithmetic number, because the mean of its divisors is an integer number (12500160).

Almost surely, 2^231322203 is an apocalyptic number.

231322203 is a deficient number, since it is larger than the sum of its proper divisors (168682917).

231322203 is a wasteful number, since it uses less digits than its factorization.

231322203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26104 (or 26098 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 231322203 is about 15209.2801604810. The cubic root of 231322203 is about 613.8643885941.

Adding to 231322203 its reverse (302223132), we get a palindrome (533545335).

The spelling of 231322203 in words is "two hundred thirty-one million, three hundred twenty-two thousand, two hundred three".