105326211581 has 2 divisors, whose sum is σ = 105326211582. Its totient is φ = 105326211580.

The previous prime is 105326211553. The next prime is 105326211611. The reversal of 105326211581 is 185112623501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77985589081 + 27340622500 = 279259^2 + 165350^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105326211581 is a prime.

It is a super-2 number, since 2×105326211581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105326211511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52663105790 + 52663105791.

It is an arithmetic number, because the mean of its divisors is an integer number (52663105791).

Almost surely, 2^105326211581 is an apocalyptic number.

It is an amenable number.

105326211581 is a deficient number, since it is larger than the sum of its proper divisors (1).

105326211581 is an equidigital number, since it uses as much as digits as its factorization.

105326211581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 35.

The spelling of 105326211581 in words is "one hundred five billion, three hundred twenty-six million, two hundred eleven thousand, five hundred eighty-one".