13155205213 has 2 divisors, whose sum is σ = 13155205214. Its totient is φ = 13155205212.

The previous prime is 13155205187. The next prime is 13155205223. The reversal of 13155205213 is 31250255131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9435791044 + 3719414169 = 97138^2 + 60987^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13155205213 is a prime.

It is a super-2 number, since 2×13155205213² (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 (13155205223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6577602606 + 6577602607.

It is an arithmetic number, because the mean of its divisors is an integer number (6577602607).

Almost surely, 2^13155205213 is an apocalyptic number.

It is an amenable number.

13155205213 is a deficient number, since it is larger than the sum of its proper divisors (1).

13155205213 is an equidigital number, since it uses as much as digits as its factorization.

13155205213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4500, while the sum is 28.

The spelling of 13155205213 in words is "thirteen billion, one hundred fifty-five million, two hundred five thousand, two hundred thirteen".