13215341215 has 4 divisors (see below), whose sum is σ = 15858409464. Its totient is φ = 10572272968.

The previous prime is 13215341197. The next prime is 13215341273. The reversal of 13215341215 is 51214351231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51214351231 = 431 ⋅118826801.

It is a cyclic number.

It is not a de Polignac number, because 13215341215 - 2¹³ = 13215333023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321534117 + ... + 1321534126.

It is an arithmetic number, because the mean of its divisors is an integer number (3964602366).

Almost surely, 2^13215341215 is an apocalyptic number.

13215341215 is a deficient number, since it is larger than the sum of its proper divisors (2643068249).

13215341215 is an equidigital number, since it uses as much as digits as its factorization.

13215341215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2643068248.

The product of its digits is 3600, while the sum is 28.

Adding to 13215341215 its reverse (51214351231), we get a palindrome (64429692446).

The spelling of 13215341215 in words is "thirteen billion, two hundred fifteen million, three hundred forty-one thousand, two hundred fifteen".