13355019217 has 2 divisors, whose sum is σ = 13355019218. Its totient is φ = 13355019216.

The previous prime is 13355019191. The next prime is 13355019329. The reversal of 13355019217 is 71291055331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12823071121 + 531948096 = 113239^2 + 23064^2 .

It is a cyclic number.

It is not a de Polignac number, because 13355019217 - 2⁷ = 13355019089 is a prime.

It is not a weakly prime, because it can be changed into another prime (13355019917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6677509608 + 6677509609.

It is an arithmetic number, because the mean of its divisors is an integer number (6677509609).

Almost surely, 2^13355019217 is an apocalyptic number.

It is an amenable number.

13355019217 is a deficient number, since it is larger than the sum of its proper divisors (1).

13355019217 is an equidigital number, since it uses as much as digits as its factorization.

13355019217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28350, while the sum is 37.

The spelling of 13355019217 in words is "thirteen billion, three hundred fifty-five million, nineteen thousand, two hundred seventeen".