13431213043 has 2 divisors, whose sum is σ = 13431213044. Its totient is φ = 13431213042.

The previous prime is 13431213023. The next prime is 13431213049. The reversal of 13431213043 is 34031213431.

It is a strong prime.

It is an emirp because it is prime and its reverse (34031213431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13431213043 - 2⁵ = 13431213011 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13431212999 and 13431213017.

It is not a weakly prime, because it can be changed into another prime (13431213049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6715606521 + 6715606522.

It is an arithmetic number, because the mean of its divisors is an integer number (6715606522).

Almost surely, 2^13431213043 is an apocalyptic number.

13431213043 is a deficient number, since it is larger than the sum of its proper divisors (1).

13431213043 is an equidigital number, since it uses as much as digits as its factorization.

13431213043 is an evil number, because the sum of its binary digits is even.

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

Adding to 13431213043 its reverse (34031213431), we get a palindrome (47462426474).

The spelling of 13431213043 in words is "thirteen billion, four hundred thirty-one million, two hundred thirteen thousand, forty-three".