231234233 has 2 divisors, whose sum is σ = 231234234. Its totient is φ = 231234232.

The previous prime is 231234229. The next prime is 231234251. The reversal of 231234233 is 332432132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177768889 + 53465344 = 13333^2 + 7312^2 .

It is a cyclic number.

It is not a de Polignac number, because 231234233 - 2² = 231234229 is a prime.

It is a super-2 number, since 2×231234233² = 106938541022196578, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231234199 and 231234208.

It is not a weakly prime, because it can be changed into another prime (231234253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115617116 + 115617117.

It is an arithmetic number, because the mean of its divisors is an integer number (115617117).

Almost surely, 2^231234233 is an apocalyptic number.

It is an amenable number.

231234233 is a deficient number, since it is larger than the sum of its proper divisors (1).

231234233 is an equidigital number, since it uses as much as digits as its factorization.

231234233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 23.

The square root of 231234233 is about 15206.3879011421. The cubic root of 231234233 is about 613.7865628076.

Adding to 231234233 its reverse (332432132), we get a palindrome (563666365).

The spelling of 231234233 in words is "two hundred thirty-one million, two hundred thirty-four thousand, two hundred thirty-three".