12312220323330 has 96 divisors (see below), whose sum is σ = 32108386592880. Its totient is φ = 3273358233600.

The previous prime is 12312220323289. The next prime is 12312220323353. The reversal of 12312220323330 is 3332302221321.

12312220323330 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 2 + 2 + 2 + 0 + 323 + 330 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 8988537651921 + 3323682671409 = 2998089^2 + 1823097^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12312220323294 and 12312220323303.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 69673726 + ... + 69850214.

Almost surely, 2^{12312220323330} is an apocalyptic number.

12312220323330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12312220323330 is an abundant number, since it is smaller than the sum of its proper divisors (19796166269550).

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

12312220323330 is a wasteful number, since it uses less digits than its factorization.

12312220323330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178836 (or 178833 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 12312220323330 its reverse (3332302221321), we get a palindrome (15644522544651).

The spelling of 12312220323330 in words is "twelve trillion, three hundred twelve billion, two hundred twenty million, three hundred twenty-three thousand, three hundred thirty".