91314210213211 has 2 divisors, whose sum is σ = 91314210213212. Its totient is φ = 91314210213210.

The previous prime is 91314210213203. The next prime is 91314210213329. The reversal of 91314210213211 is 11231201241319.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (11231201241319) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91314210213211 - 2³ = 91314210213203 is a prime.

It is not a weakly prime, because it can be changed into another prime (91314210283211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45657105106605 + 45657105106606.

It is an arithmetic number, because the mean of its divisors is an integer number (45657105106606).

Almost surely, 2^{91314210213211} is an apocalyptic number.

91314210213211 is a deficient number, since it is larger than the sum of its proper divisors (1).

91314210213211 is an equidigital number, since it uses as much as digits as its factorization.

91314210213211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 91314210213211 in words is "ninety-one trillion, three hundred fourteen billion, two hundred ten million, two hundred thirteen thousand, two hundred eleven".