13213918519 has 2 divisors, whose sum is σ = 13213918520. Its totient is φ = 13213918518.

The previous prime is 13213918499. The next prime is 13213918573. The reversal of 13213918519 is 91581931231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13213918519 - 2²¹ = 13211821367 is a prime.

It is a super-2 number, since 2×13213918519² (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 (13213910519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606959259 + 6606959260.

It is an arithmetic number, because the mean of its divisors is an integer number (6606959260).

Almost surely, 2^13213918519 is an apocalyptic number.

13213918519 is a deficient number, since it is larger than the sum of its proper divisors (1).

13213918519 is an equidigital number, since it uses as much as digits as its factorization.

13213918519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 43.

The spelling of 13213918519 in words is "thirteen billion, two hundred thirteen million, nine hundred eighteen thousand, five hundred nineteen".