13867232081 has 2 divisors, whose sum is σ = 13867232082. Its totient is φ = 13867232080.

The previous prime is 13867232047. The next prime is 13867232143. The reversal of 13867232081 is 18023276831.

13867232081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12557443600 + 1309788481 = 112060^2 + 36191^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13867232081 is a prime.

It is a super-2 number, since 2×13867232081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13867232021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6933616040 + 6933616041.

It is an arithmetic number, because the mean of its divisors is an integer number (6933616041).

Almost surely, 2^13867232081 is an apocalyptic number.

It is an amenable number.

13867232081 is a deficient number, since it is larger than the sum of its proper divisors (1).

13867232081 is an equidigital number, since it uses as much as digits as its factorization.

13867232081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96768, while the sum is 41.

The spelling of 13867232081 in words is "thirteen billion, eight hundred sixty-seven million, two hundred thirty-two thousand, eighty-one".