13043523043 has 2 divisors, whose sum is σ = 13043523044. Its totient is φ = 13043523042.

The previous prime is 13043523029. The next prime is 13043523061. The reversal of 13043523043 is 34032534031.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13043523043 is a prime.

It is not a weakly prime, because it can be changed into another prime (13043529043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6521761521 + 6521761522.

It is an arithmetic number, because the mean of its divisors is an integer number (6521761522).

Almost surely, 2^13043523043 is an apocalyptic number.

13043523043 is a deficient number, since it is larger than the sum of its proper divisors (1).

13043523043 is an equidigital number, since it uses as much as digits as its factorization.

13043523043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 28.

The spelling of 13043523043 in words is "thirteen billion, forty-three million, five hundred twenty-three thousand, forty-three".