231101323133333 has 2 divisors, whose sum is σ = 231101323133334. Its totient is φ = 231101323133332.

The previous prime is 231101323133279. The next prime is 231101323133371. The reversal of 231101323133333 is 333331323101132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 225162539343889 + 5938783789444 = 15005417^2 + 2436962^2 .

It is a cyclic number.

It is not a de Polignac number, because 231101323133333 - 2⁶ = 231101323133269 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231101323133333.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231101323139333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115550661566666 + 115550661566667.

It is an arithmetic number, because the mean of its divisors is an integer number (115550661566667).

Almost surely, 2^{231101323133333} is an apocalyptic number.

It is an amenable number.

231101323133333 is a deficient number, since it is larger than the sum of its proper divisors (1).

231101323133333 is an equidigital number, since it uses as much as digits as its factorization.

231101323133333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 32.

Adding to 231101323133333 its reverse (333331323101132), we get a palindrome (564432646234465).

The spelling of 231101323133333 in words is "two hundred thirty-one trillion, one hundred one billion, three hundred twenty-three million, one hundred thirty-three thousand, three hundred thirty-three".