213322131213187 has 2 divisors, whose sum is σ = 213322131213188. Its totient is φ = 213322131213186.

The previous prime is 213322131213161. The next prime is 213322131213221. The reversal of 213322131213187 is 781312131223312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213322131213187 - 2¹¹ = 213322131211139 is a prime.

It is not a weakly prime, because it can be changed into another prime (213322131213137) 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, 106661065606593 + 106661065606594.

It is an arithmetic number, because the mean of its divisors is an integer number (106661065606594).

Almost surely, 2^{213322131213187} is an apocalyptic number.

213322131213187 is a deficient number, since it is larger than the sum of its proper divisors (1).

213322131213187 is an equidigital number, since it uses as much as digits as its factorization.

213322131213187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 40.

Adding to 213322131213187 its reverse (781312131223312), we get a palindrome (994634262436499).

The spelling of 213322131213187 in words is "two hundred thirteen trillion, three hundred twenty-two billion, one hundred thirty-one million, two hundred thirteen thousand, one hundred eighty-seven".