213322131219097 has 2 divisors, whose sum is σ = 213322131219098. Its totient is φ = 213322131219096.

The previous prime is 213322131218939. The next prime is 213322131219181. The reversal of 213322131219097 is 790912131223312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211734773129881 + 1587358089216 = 14551109^2 + 1259904^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213322131219097 is a prime.

It is not a weakly prime, because it can be changed into another prime (213322131219797) 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, 106661065609548 + 106661065609549.

It is an arithmetic number, because the mean of its divisors is an integer number (106661065609549).

Almost surely, 2^{213322131219097} is an apocalyptic number.

It is an amenable number.

213322131219097 is a deficient number, since it is larger than the sum of its proper divisors (1).

213322131219097 is an equidigital number, since it uses as much as digits as its factorization.

213322131219097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 213322131219097 in words is "two hundred thirteen trillion, three hundred twenty-two billion, one hundred thirty-one million, two hundred nineteen thousand, ninety-seven".