231330212233 has 2 divisors, whose sum is σ = 231330212234. Its totient is φ = 231330212232.

The previous prime is 231330212207. The next prime is 231330212249. The reversal of 231330212233 is 332212033132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231325407369 + 4804864 = 480963^2 + 2192^2 .

It is a cyclic number.

It is not a de Polignac number, because 231330212233 - 2²⁹ = 230793341321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231330212198 and 231330212207.

It is not a weakly prime, because it can be changed into another prime (231330312233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115665106116 + 115665106117.

It is an arithmetic number, because the mean of its divisors is an integer number (115665106117).

Almost surely, 2^231330212233 is an apocalyptic number.

It is an amenable number.

231330212233 is a deficient number, since it is larger than the sum of its proper divisors (1).

231330212233 is an equidigital number, since it uses as much as digits as its factorization.

231330212233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 231330212233 its reverse (332212033132), we get a palindrome (563542245365).

The spelling of 231330212233 in words is "two hundred thirty-one billion, three hundred thirty million, two hundred twelve thousand, two hundred thirty-three".