11304340345 has 4 divisors (see below), whose sum is σ = 13565208420. Its totient is φ = 9043472272.

The previous prime is 11304340319. The next prime is 11304340393. The reversal of 11304340345 is 54304340311.

11304340345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7628100921 + 3676239424 = 87339^2 + 60632^2 .

It is a cyclic number.

It is not a de Polignac number, because 11304340345 - 2¹⁹ = 11303816057 is a prime.

It is a super-3 number, since 3×11304340345³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

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, 1130434030 + ... + 1130434039.

It is an arithmetic number, because the mean of its divisors is an integer number (3391302105).

Almost surely, 2^11304340345 is an apocalyptic number.

It is an amenable number.

11304340345 is a deficient number, since it is larger than the sum of its proper divisors (2260868075).

11304340345 is an equidigital number, since it uses as much as digits as its factorization.

11304340345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260868074.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 11304340345 its reverse (54304340311), we get a palindrome (65608680656).

It can be divided in two parts, 11304 and 340345, that added together give a square (351649 = 593²).

The spelling of 11304340345 in words is "eleven billion, three hundred four million, three hundred forty thousand, three hundred forty-five".