212131130240233 has 2 divisors, whose sum is σ = 212131130240234. Its totient is φ = 212131130240232.

The previous prime is 212131130240231. The next prime is 212131130240279. The reversal of 212131130240233 is 332042031131212.

212131130240233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199755172109529 + 12375958130704 = 14133477^2 + 3517948^2 .

It is a cyclic number.

It is not a de Polignac number, because 212131130240233 - 2¹ = 212131130240231 is a prime.

Together with 212131130240231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (212131130240231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106065565120116 + 106065565120117.

It is an arithmetic number, because the mean of its divisors is an integer number (106065565120117).

Almost surely, 2^{212131130240233} is an apocalyptic number.

It is an amenable number.

212131130240233 is a deficient number, since it is larger than the sum of its proper divisors (1).

212131130240233 is an equidigital number, since it uses as much as digits as its factorization.

212131130240233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 212131130240233 its reverse (332042031131212), we get a palindrome (544173161371445).

The spelling of 212131130240233 in words is "two hundred twelve trillion, one hundred thirty-one billion, one hundred thirty million, two hundred forty thousand, two hundred thirty-three".