231343203 has 48 divisors (see below), whose sum is σ = 390808320. Its totient is φ = 118537344.

The previous prime is 231343201. The next prime is 231343213. The reversal of 231343203 is 302343132.

It is not a de Polignac number, because 231343203 - 2¹ = 231343201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 231343203.

It is not an unprimeable number, because it can be changed into a prime (231343201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 373428 + ... + 374046.

It is an arithmetic number, because the mean of its divisors is an integer number (8141840).

Almost surely, 2^231343203 is an apocalyptic number.

231343203 is a deficient number, since it is larger than the sum of its proper divisors (159465117).

231343203 is a wasteful number, since it uses less digits than its factorization.

231343203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 716 (or 679 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 231343203 is about 15209.9705127919. The cubic root of 231343203 is about 613.8829640730.

Adding to 231343203 its reverse (302343132), we get a palindrome (533686335).

The spelling of 231343203 in words is "two hundred thirty-one million, three hundred forty-three thousand, two hundred three".