13533142243 has 2 divisors, whose sum is σ = 13533142244. Its totient is φ = 13533142242.

The previous prime is 13533142211. The next prime is 13533142253. The reversal of 13533142243 is 34224133531.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13533142243 - 2⁵ = 13533142211 is a prime.

It is not a weakly prime, because it can be changed into another prime (13533142253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6766571121 + 6766571122.

It is an arithmetic number, because the mean of its divisors is an integer number (6766571122).

Almost surely, 2^13533142243 is an apocalyptic number.

13533142243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13533142243 is an equidigital number, since it uses as much as digits as its factorization.

13533142243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 31.

Adding to 13533142243 its reverse (34224133531), we get a palindrome (47757275774).

The spelling of 13533142243 in words is "thirteen billion, five hundred thirty-three million, one hundred forty-two thousand, two hundred forty-three".