12031303320 has 96 divisors (see below), whose sum is σ = 40158583920. Its totient is φ = 3121632000.

The previous prime is 12031303313. The next prime is 12031303331. The reversal of 12031303320 is 2330313021.

12031303320 is a `hidden beast` number, since 1 + 20 + 313 + 0 + 332 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12031303293 and 12031303302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 438306 + ... + 464945.

Almost surely, 2^12031303320 is an apocalyptic number.

12031303320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031303320 is an abundant number, since it is smaller than the sum of its proper divisors (28127280600).

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

12031303320 is a wasteful number, since it uses less digits than its factorization.

12031303320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903305 (or 903298 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 12031303320 its reverse (2330313021), we get a palindrome (14361616341).

The spelling of 12031303320 in words is "twelve billion, thirty-one million, three hundred three thousand, three hundred twenty".