2311320344 has 8 divisors (see below), whose sum is σ = 4333725660. Its totient is φ = 1155660168.

The previous prime is 2311320343. The next prime is 2311320359. The reversal of 2311320344 is 4430231132.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311320343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144457514 + ... + 144457529.

Almost surely, 2^2311320344 is an apocalyptic number.

It is an amenable number.

2311320344 is a deficient number, since it is larger than the sum of its proper divisors (2022405316).

2311320344 is a wasteful number, since it uses less digits than its factorization.

2311320344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288915049 (or 288915045 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2311320344 is about 48076.1931105199. The cubic root of 2311320344 is about 1322.1682195344.

Adding to 2311320344 its reverse (4430231132), we get a palindrome (6741551476).

The spelling of 2311320344 in words is "two billion, three hundred eleven million, three hundred twenty thousand, three hundred forty-four".