12031301320 has 16 divisors (see below), whose sum is σ = 27070428060. Its totient is φ = 4812520512.

The previous prime is 12031301273. The next prime is 12031301323. The reversal of 12031301320 is 2310313021.

12031301320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 11895392356 + 135908964 = 109066^2 + 11658^2 .

It is a super-2 number, since 2×12031301320² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12031301294 and 12031301303.

It is not an unprimeable number, because it can be changed into a prime (12031301323) 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 3 ways as a sum of consecutive naturals, for example, 150391227 + ... + 150391306.

Almost surely, 2^12031301320 is an apocalyptic number.

12031301320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031301320 is an abundant number, since it is smaller than the sum of its proper divisors (15039126740).

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

12031301320 is a wasteful number, since it uses less digits than its factorization.

12031301320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300782544 (or 300782540 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12031301320 its reverse (2310313021), we get a palindrome (14341614341).

The spelling of 12031301320 in words is "twelve billion, thirty-one million, three hundred one thousand, three hundred twenty".