16731231199 has 2 divisors, whose sum is σ = 16731231200. Its totient is φ = 16731231198.

The previous prime is 16731231197. The next prime is 16731231227. The reversal of 16731231199 is 99113213761.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16731231199 - 2¹ = 16731231197 is a prime.

It is a super-5 number, since 5×16731231199⁵ (a number of 52 digits) contains 55555 as substring.

Together with 16731231197, 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 (16731231191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8365615599 + 8365615600.

It is an arithmetic number, because the mean of its divisors is an integer number (8365615600).

Almost surely, 2^16731231199 is an apocalyptic number.

16731231199 is a deficient number, since it is larger than the sum of its proper divisors (1).

16731231199 is an equidigital number, since it uses as much as digits as its factorization.

16731231199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 61236, while the sum is 43.

The spelling of 16731231199 in words is "sixteen billion, seven hundred thirty-one million, two hundred thirty-one thousand, one hundred ninety-nine".