13212316511 has 2 divisors, whose sum is σ = 13212316512. Its totient is φ = 13212316510.

The previous prime is 13212316471. The next prime is 13212316549. The reversal of 13212316511 is 11561321231.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13212316511 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13212310511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606158255 + 6606158256.

It is an arithmetic number, because the mean of its divisors is an integer number (6606158256).

Almost surely, 2^13212316511 is an apocalyptic number.

13212316511 is a deficient number, since it is larger than the sum of its proper divisors (1).

13212316511 is an equidigital number, since it uses as much as digits as its factorization.

13212316511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

Adding to 13212316511 its reverse (11561321231), we get a palindrome (24773637742).

The spelling of 13212316511 in words is "thirteen billion, two hundred twelve million, three hundred sixteen thousand, five hundred eleven".