13131104243 has 2 divisors, whose sum is σ = 13131104244. Its totient is φ = 13131104242.

The previous prime is 13131104221. The next prime is 13131104303. The reversal of 13131104243 is 34240113131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13131104243 - 2¹⁶ = 13131038707 is a prime.

It is not a weakly prime, because it can be changed into another prime (13131104743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565552121 + 6565552122.

It is an arithmetic number, because the mean of its divisors is an integer number (6565552122).

Almost surely, 2^13131104243 is an apocalyptic number.

13131104243 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131104243 is an equidigital number, since it uses as much as digits as its factorization.

13131104243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13131104243 its reverse (34240113131), we get a palindrome (47371217374).

The spelling of 13131104243 in words is "thirteen billion, one hundred thirty-one million, one hundred four thousand, two hundred forty-three".