231203034 has 12 divisors (see below), whose sum is σ = 500939946. Its totient is φ = 77067672.

The previous prime is 231203033. The next prime is 231203041. The reversal of 231203034 is 430302132.

It can be written as a sum of positive squares in only one way, i.e., 120890025 + 110313009 = 10995^2 + 10503^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 12844613 = 231203034 / (2 + 3 + 1 + 2 + 0 + 3 + 0 + 3 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 231202998 and 231203016.

It is not an unprimeable number, because it can be changed into a prime (231203033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6422289 + ... + 6422324.

Almost surely, 2^231203034 is an apocalyptic number.

231203034 is an abundant number, since it is smaller than the sum of its proper divisors (269736912).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231203034 is a wasteful number, since it uses less digits than its factorization.

231203034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12844621 (or 12844618 counting only the distinct ones).

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

The square root of 231203034 is about 15205.3620147631. The cubic root of 231203034 is about 613.7589567621.

Adding to 231203034 its reverse (430302132), we get a palindrome (661505166).

The spelling of 231203034 in words is "two hundred thirty-one million, two hundred three thousand, thirty-four".