12311302122320 has 40 divisors (see below), whose sum is σ = 29321918355240. Its totient is φ = 4804410583040.

The previous prime is 12311302122269. The next prime is 12311302122341. The reversal of 12311302122320 is 2322120311321.

It can be written as a sum of positive squares in 4 ways, for example, as 1899115511056 + 10412186611264 = 1378084^2 + 3226792^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1876719605 + ... + 1876726164.

It is an arithmetic number, because the mean of its divisors is an integer number (733047958881).

Almost surely, 2^{12311302122320} is an apocalyptic number.

12311302122320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12311302122320 is an abundant number, since it is smaller than the sum of its proper divisors (17010616232920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12311302122320 is a wasteful number, since it uses less digits than its factorization.

12311302122320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3753445823 (or 3753445817 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12311302122320 its reverse (2322120311321), we get a palindrome (14633422433641).

The spelling of 12311302122320 in words is "twelve trillion, three hundred eleven billion, three hundred two million, one hundred twenty-two thousand, three hundred twenty".