13221322104131 has 2 divisors, whose sum is σ = 13221322104132. Its totient is φ = 13221322104130.

The previous prime is 13221322104091. The next prime is 13221322104143. The reversal of 13221322104131 is 13140122312231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13221322104131 is a prime.

It is a super-3 number, since 3×13221322104131³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13221322104131.

It is not a weakly prime, because it can be changed into another prime (13221322100131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610661052065 + 6610661052066.

It is an arithmetic number, because the mean of its divisors is an integer number (6610661052066).

Almost surely, 2^{13221322104131} is an apocalyptic number.

13221322104131 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221322104131 is an equidigital number, since it uses as much as digits as its factorization.

13221322104131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 13221322104131 its reverse (13140122312231), we get a palindrome (26361444416362).

The spelling of 13221322104131 in words is "thirteen trillion, two hundred twenty-one billion, three hundred twenty-two million, one hundred four thousand, one hundred thirty-one".