13533430243 has 2 divisors, whose sum is σ = 13533430244. Its totient is φ = 13533430242.

The previous prime is 13533430231. The next prime is 13533430271. The reversal of 13533430243 is 34203433531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13533430243 - 2³³ = 4943495651 is a prime.

It is not a weakly prime, because it can be changed into another prime (13533430343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6766715121 + 6766715122.

It is an arithmetic number, because the mean of its divisors is an integer number (6766715122).

Almost surely, 2^13533430243 is an apocalyptic number.

13533430243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13533430243 is an equidigital number, since it uses as much as digits as its factorization.

13533430243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 31.

Adding to 13533430243 its reverse (34203433531), we get a palindrome (47736863774).

The spelling of 13533430243 in words is "thirteen billion, five hundred thirty-three million, four hundred thirty thousand, two hundred forty-three".