31334605399 has 4 divisors (see below), whose sum is σ = 32181486664. Its totient is φ = 30487724136.

The previous prime is 31334605397. The next prime is 31334605439. The reversal of 31334605399 is 99350643313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31334605399 - 2¹ = 31334605397 is a prime.

It is a super-2 number, since 2×31334605399² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31334605397) 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 in 3 ways as a sum of consecutive naturals, for example, 423440577 + ... + 423440650.

It is an arithmetic number, because the mean of its divisors is an integer number (8045371666).

Almost surely, 2^31334605399 is an apocalyptic number.

31334605399 is a deficient number, since it is larger than the sum of its proper divisors (846881265).

31334605399 is an equidigital number, since it uses as much as digits as its factorization.

31334605399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846881264.

The product of its (nonzero) digits is 787320, while the sum is 46.

The spelling of 31334605399 in words is "thirty-one billion, three hundred thirty-four million, six hundred five thousand, three hundred ninety-nine".