13343221231 has 2 divisors, whose sum is σ = 13343221232. Its totient is φ = 13343221230.

The previous prime is 13343221187. The next prime is 13343221259. The reversal of 13343221231 is 13212234331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13343221231 is a prime.

It is a super-2 number, since 2×13343221231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13343221196 and 13343221205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13343221831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6671610615 + 6671610616.

It is an arithmetic number, because the mean of its divisors is an integer number (6671610616).

Almost surely, 2^13343221231 is an apocalyptic number.

13343221231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13343221231 is an equidigital number, since it uses as much as digits as its factorization.

13343221231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 25.

Adding to 13343221231 its reverse (13212234331), we get a palindrome (26555455562).

The spelling of 13343221231 in words is "thirteen billion, three hundred forty-three million, two hundred twenty-one thousand, two hundred thirty-one".