12311343502 has 16 divisors (see below), whose sum is σ = 18900427392. Its totient is φ = 6011260920.

The previous prime is 12311343497. The next prime is 12311343547. The reversal of 12311343502 is 20534311321.

It is a happy number.

12311343502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 502927 + ... + 526837.

It is an arithmetic number, because the mean of its divisors is an integer number (1181276712).

Almost surely, 2^12311343502 is an apocalyptic number.

12311343502 is a deficient number, since it is larger than the sum of its proper divisors (6589083890).

12311343502 is a wasteful number, since it uses less digits than its factorization.

12311343502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29943.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 12311343502 its reverse (20534311321), we get a palindrome (32845654823).

The spelling of 12311343502 in words is "twelve billion, three hundred eleven million, three hundred forty-three thousand, five hundred two".