2311431582349 has 4 divisors (see below), whose sum is σ = 2317628450236. Its totient is φ = 2305234714464.

The previous prime is 2311431582331. The next prime is 2311431582353. The reversal of 2311431582349 is 9432851341132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1271402829225 + 1040028753124 = 1127565^2 + 1019818^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311431582349 - 2¹¹ = 2311431580301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2311431582299 and 2311431582308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311431582319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3098433384 + ... + 3098434129.

It is an arithmetic number, because the mean of its divisors is an integer number (579407112559).

Almost surely, 2^{2311431582349} is an apocalyptic number.

It is an amenable number.

2311431582349 is a deficient number, since it is larger than the sum of its proper divisors (6196867887).

2311431582349 is an equidigital number, since it uses as much as digits as its factorization.

2311431582349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6196867886.

The product of its digits is 622080, while the sum is 46.

The spelling of 2311431582349 in words is "two trillion, three hundred eleven billion, four hundred thirty-one million, five hundred eighty-two thousand, three hundred forty-nine".