13216415431 has 2 divisors, whose sum is σ = 13216415432. Its totient is φ = 13216415430.

The previous prime is 13216415341. The next prime is 13216415483. The reversal of 13216415431 is 13451461231.

Together with previous prime (13216415341) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13216415431 - 2¹¹ = 13216413383 is a prime.

It is a super-2 number, since 2×13216415431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13216415393 and 13216415402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13216715431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6608207715 + 6608207716.

It is an arithmetic number, because the mean of its divisors is an integer number (6608207716).

Almost surely, 2^13216415431 is an apocalyptic number.

13216415431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13216415431 is an equidigital number, since it uses as much as digits as its factorization.

13216415431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 31.

Adding to 13216415431 its reverse (13451461231), we get a palindrome (26667876662).

The spelling of 13216415431 in words is "thirteen billion, two hundred sixteen million, four hundred fifteen thousand, four hundred thirty-one".