13999999967231 has 2 divisors, whose sum is σ = 13999999967232. Its totient is φ = 13999999967230.

The previous prime is 13999999967207. The next prime is 13999999967309. The reversal of 13999999967231 is 13276999999931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13999999967231 - 2¹⁴ = 13999999950847 is a prime.

It is a super-2 number, since 2×13999999967231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13999999967531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6999999983615 + 6999999983616.

It is an arithmetic number, because the mean of its divisors is an integer number (6999999983616).

Almost surely, 2^{13999999967231} is an apocalyptic number.

13999999967231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13999999967231 is an equidigital number, since it uses as much as digits as its factorization.

13999999967231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3615924564, while the sum is 86.

The spelling of 13999999967231 in words is "thirteen trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred sixty-seven thousand, two hundred thirty-one".