2311243517 has 16 divisors (see below), whose sum is σ = 2741833152. Its totient is φ = 1924081920.

The previous prime is 2311243469. The next prime is 2311243523. The reversal of 2311243517 is 7153421132.

It is a cyclic number.

It is not a de Polignac number, because 2311243517 - 2¹² = 2311239421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2311243517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311243217) 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 15 ways as a sum of consecutive naturals, for example, 160103 + ... + 173940.

It is an arithmetic number, because the mean of its divisors is an integer number (171364572).

Almost surely, 2^2311243517 is an apocalyptic number.

It is an amenable number.

2311243517 is a deficient number, since it is larger than the sum of its proper divisors (430589635).

2311243517 is a wasteful number, since it uses less digits than its factorization.

2311243517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334108.

The product of its digits is 5040, while the sum is 29.

The square root of 2311243517 is about 48075.3940909484. The cubic root of 2311243517 is about 1322.1535699938.

Adding to 2311243517 its reverse (7153421132), we get a palindrome (9464664649).

The spelling of 2311243517 in words is "two billion, three hundred eleven million, two hundred forty-three thousand, five hundred seventeen".