13211331277 has 2 divisors, whose sum is σ = 13211331278. Its totient is φ = 13211331276.

The previous prime is 13211331257. The next prime is 13211331317. The reversal of 13211331277 is 77213311231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7120153161 + 6091178116 = 84381^2 + 78046^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13211331277 is a prime.

It is a super-2 number, since 2×13211331277² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13211331247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6605665638 + 6605665639.

It is an arithmetic number, because the mean of its divisors is an integer number (6605665639).

Almost surely, 2^13211331277 is an apocalyptic number.

It is an amenable number.

13211331277 is a deficient number, since it is larger than the sum of its proper divisors (1).

13211331277 is an equidigital number, since it uses as much as digits as its factorization.

13211331277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5292, while the sum is 31.

The spelling of 13211331277 in words is "thirteen billion, two hundred eleven million, three hundred thirty-one thousand, two hundred seventy-seven".