105405324391 has 2 divisors, whose sum is σ = 105405324392. Its totient is φ = 105405324390.

The previous prime is 105405324389. The next prime is 105405324443. The reversal of 105405324391 is 193423504501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105405324391 - 2¹ = 105405324389 is a prime.

It is a super-2 number, since 2×105405324391² (a number of 23 digits) contains 22 as substring.

Together with 105405324389, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 105405324391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105405324341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52702662195 + 52702662196.

It is an arithmetic number, because the mean of its divisors is an integer number (52702662196).

Almost surely, 2^105405324391 is an apocalyptic number.

105405324391 is a deficient number, since it is larger than the sum of its proper divisors (1).

105405324391 is an equidigital number, since it uses as much as digits as its factorization.

105405324391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64800, while the sum is 37.

Adding to 105405324391 its reverse (193423504501), we get a palindrome (298828828892).

The spelling of 105405324391 in words is "one hundred five billion, four hundred five million, three hundred twenty-four thousand, three hundred ninety-one".