213323023222391 has 2 divisors, whose sum is σ = 213323023222392. Its totient is φ = 213323023222390.

The previous prime is 213323023222367. The next prime is 213323023222429. The reversal of 213323023222391 is 193222320323312.

It is an a-pointer prime, because the next prime (213323023222429) can be obtained adding 213323023222391 to its sum of digits (38).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213323023222391 - 2⁶ = 213323023222327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213323013222391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106661511611195 + 106661511611196.

It is an arithmetic number, because the mean of its divisors is an integer number (106661511611196).

Almost surely, 2^{213323023222391} is an apocalyptic number.

213323023222391 is a deficient number, since it is larger than the sum of its proper divisors (1).

213323023222391 is an equidigital number, since it uses as much as digits as its factorization.

213323023222391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 139968, while the sum is 38.

The spelling of 213323023222391 in words is "two hundred thirteen trillion, three hundred twenty-three billion, twenty-three million, two hundred twenty-two thousand, three hundred ninety-one".