13243234189 has 2 divisors, whose sum is σ = 13243234190. Its totient is φ = 13243234188.

The previous prime is 13243234187. The next prime is 13243234241. The reversal of 13243234189 is 98143234231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12659625225 + 583608964 = 112515^2 + 24158^2 .

It is a cyclic number.

It is not a de Polignac number, because 13243234189 - 2¹ = 13243234187 is a prime.

Together with 13243234187, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13243234181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6621617094 + 6621617095.

It is an arithmetic number, because the mean of its divisors is an integer number (6621617095).

Almost surely, 2^13243234189 is an apocalyptic number.

It is an amenable number.

13243234189 is a deficient number, since it is larger than the sum of its proper divisors (1).

13243234189 is an equidigital number, since it uses as much as digits as its factorization.

13243234189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 40.

The spelling of 13243234189 in words is "thirteen billion, two hundred forty-three million, two hundred thirty-four thousand, one hundred eighty-nine".