314331999869 has 2 divisors, whose sum is σ = 314331999870. Its totient is φ = 314331999868.

The previous prime is 314331999827. The next prime is 314331999871. The reversal of 314331999869 is 968999133413.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 288229396900 + 26102602969 = 536870^2 + 161563^2 .

It is an emirp because it is prime and its reverse (968999133413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 314331999869 - 2²⁰ = 314330951293 is a prime.

It is a super-2 number, since 2×314331999869² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 314331999871, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (314331999269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 157165999934 + 157165999935.

It is an arithmetic number, because the mean of its divisors is an integer number (157165999935).

Almost surely, 2^314331999869 is an apocalyptic number.

It is an amenable number.

314331999869 is a deficient number, since it is larger than the sum of its proper divisors (1).

314331999869 is an equidigital number, since it uses as much as digits as its factorization.

314331999869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34012224, while the sum is 65.

It can be divided in two parts, 31433 and 1999869, that added together give a palindrome (2031302).

The spelling of 314331999869 in words is "three hundred fourteen billion, three hundred thirty-one million, nine hundred ninety-nine thousand, eight hundred sixty-nine".