13213311641 has 2 divisors, whose sum is σ = 13213311642. Its totient is φ = 13213311640.

The previous prime is 13213311623. The next prime is 13213311667. The reversal of 13213311641 is 14611331231.

It is an a-pointer prime, because the next prime (13213311667) can be obtained adding 13213311641 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13051920025 + 161391616 = 114245^2 + 12704^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13213311641 is a prime.

It is a super-2 number, since 2×13213311641² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13213311641.

It is not a weakly prime, because it can be changed into another prime (13213371641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606655820 + 6606655821.

It is an arithmetic number, because the mean of its divisors is an integer number (6606655821).

Almost surely, 2^13213311641 is an apocalyptic number.

It is an amenable number.

13213311641 is a deficient number, since it is larger than the sum of its proper divisors (1).

13213311641 is an equidigital number, since it uses as much as digits as its factorization.

13213311641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 26.

Adding to 13213311641 its reverse (14611331231), we get a palindrome (27824642872).

The spelling of 13213311641 in words is "thirteen billion, two hundred thirteen million, three hundred eleven thousand, six hundred forty-one".