211131234329 has 2 divisors, whose sum is σ = 211131234330. Its totient is φ = 211131234328.

The previous prime is 211131234317. The next prime is 211131234331. The reversal of 211131234329 is 923432131112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121416008704 + 89715225625 = 348448^2 + 299525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211131234329 is a prime.

Together with 211131234331, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 211131234295 and 211131234304.

It is not a weakly prime, because it can be changed into another prime (211131234359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105565617164 + 105565617165.

It is an arithmetic number, because the mean of its divisors is an integer number (105565617165).

Almost surely, 2^211131234329 is an apocalyptic number.

It is an amenable number.

211131234329 is a deficient number, since it is larger than the sum of its proper divisors (1).

211131234329 is an equidigital number, since it uses as much as digits as its factorization.

211131234329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The spelling of 211131234329 in words is "two hundred eleven billion, one hundred thirty-one million, two hundred thirty-four thousand, three hundred twenty-nine".