13431144343 has 2 divisors, whose sum is σ = 13431144344. Its totient is φ = 13431144342.

The previous prime is 13431144281. The next prime is 13431144401. The reversal of 13431144343 is 34344113431.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (34344113431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13431144343 is a prime.

It is a super-3 number, since 3×13431144343³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13431144943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6715572171 + 6715572172.

It is an arithmetic number, because the mean of its divisors is an integer number (6715572172).

Almost surely, 2^13431144343 is an apocalyptic number.

13431144343 is a deficient number, since it is larger than the sum of its proper divisors (1).

13431144343 is an equidigital number, since it uses as much as digits as its factorization.

13431144343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 31.

Adding to 13431144343 its reverse (34344113431), we get a palindrome (47775257774).

The spelling of 13431144343 in words is "thirteen billion, four hundred thirty-one million, one hundred forty-four thousand, three hundred forty-three".