13420315231 has 2 divisors, whose sum is σ = 13420315232. Its totient is φ = 13420315230.

The previous prime is 13420315217. The next prime is 13420315243. The reversal of 13420315231 is 13251302431.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (13251302431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13420315231 - 2⁵ = 13420315199 is a prime.

It is a super-2 number, since 2×13420315231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13420315196 and 13420315205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13420315261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6710157615 + 6710157616.

It is an arithmetic number, because the mean of its divisors is an integer number (6710157616).

Almost surely, 2^13420315231 is an apocalyptic number.

13420315231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13420315231 is an equidigital number, since it uses as much as digits as its factorization.

13420315231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 13420315231 its reverse (13251302431), we get a palindrome (26671617662).

The spelling of 13420315231 in words is "thirteen billion, four hundred twenty million, three hundred fifteen thousand, two hundred thirty-one".