231433234 has 8 divisors (see below), whose sum is σ = 347731200. Its totient is φ = 115522836.

The previous prime is 231433231. The next prime is 231433247. The reversal of 231433234 is 432334132.

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

It is a super-2 number, since 2×231433234² = 107122683599397512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231433199 and 231433208.

It is not an unprimeable number, because it can be changed into a prime (231433231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95394 + ... + 97789.

It is an arithmetic number, because the mean of its divisors is an integer number (43466400).

Almost surely, 2^231433234 is an apocalyptic number.

231433234 is a deficient number, since it is larger than the sum of its proper divisors (116297966).

231433234 is a wasteful number, since it uses less digits than its factorization.

231433234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193784.

The product of its digits is 5184, while the sum is 25.

The square root of 231433234 is about 15212.9298295890. The cubic root of 231433234 is about 613.9625879513.

Adding to 231433234 its reverse (432334132), we get a palindrome (663767366).

The spelling of 231433234 in words is "two hundred thirty-one million, four hundred thirty-three thousand, two hundred thirty-four".