13405000043 has 2 divisors, whose sum is σ = 13405000044. Its totient is φ = 13405000042.

The previous prime is 13405000033. The next prime is 13405000051. The reversal of 13405000043 is 34000050431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13405000043 - 2¹⁴ = 13404983659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13404999979 and 13405000024.

It is not a weakly prime, because it can be changed into another prime (13405000003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6702500021 + 6702500022.

It is an arithmetic number, because the mean of its divisors is an integer number (6702500022).

Almost surely, 2^13405000043 is an apocalyptic number.

13405000043 is a deficient number, since it is larger than the sum of its proper divisors (1).

13405000043 is an equidigital number, since it uses as much as digits as its factorization.

13405000043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 13405000043 its reverse (34000050431), we get a palindrome (47405050474).

The spelling of 13405000043 in words is "thirteen billion, four hundred five million, forty-three", and thus it is an aban number.