12312011031330 has 16 divisors (see below), whose sum is σ = 29548826475264. Its totient is φ = 3283202941680.

The previous prime is 12312011031329. The next prime is 12312011031347. The reversal of 12312011031330 is 3313011021321.

It is a happy number.

It is a super-2 number, since 2×12312011031330² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12312011031297 and 12312011031306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205200183826 + ... + 205200183885.

It is an arithmetic number, because the mean of its divisors is an integer number (1846801654704).

Almost surely, 2^{12312011031330} is an apocalyptic number.

12312011031330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12312011031330 is an abundant number, since it is smaller than the sum of its proper divisors (17236815443934).

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

12312011031330 is a wasteful number, since it uses less digits than its factorization.

12312011031330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410400367721.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 12312011031330 its reverse (3313011021321), we get a palindrome (15625022052651).

The spelling of 12312011031330 in words is "twelve trillion, three hundred twelve billion, eleven million, thirty-one thousand, three hundred thirty".