13215430511 has 2 divisors, whose sum is σ = 13215430512. Its totient is φ = 13215430510.

The previous prime is 13215430483. The next prime is 13215430513. The reversal of 13215430511 is 11503451231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13215430511 - 2²⁶ = 13148321647 is a prime.

It is a super-2 number, since 2×13215430511² (a number of 21 digits) contains 22 as substring.

Together with 13215430513, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13215430513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6607715255 + 6607715256.

It is an arithmetic number, because the mean of its divisors is an integer number (6607715256).

Almost surely, 2^13215430511 is an apocalyptic number.

13215430511 is a deficient number, since it is larger than the sum of its proper divisors (1).

13215430511 is an equidigital number, since it uses as much as digits as its factorization.

13215430511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 13215430511 its reverse (11503451231), we get a palindrome (24718881742).

The spelling of 13215430511 in words is "thirteen billion, two hundred fifteen million, four hundred thirty thousand, five hundred eleven".