12020331231233 has 4 divisors (see below), whose sum is σ = 12944972095188. Its totient is φ = 11095690367280.

The previous prime is 12020331231229. The next prime is 12020331231247. The reversal of 12020331231233 is 33213213302021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7763400818944 + 4256930412289 = 2786288^2 + 2063233^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020331231233 - 2² = 12020331231229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020331230233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 462320431958 + ... + 462320431983.

It is an arithmetic number, because the mean of its divisors is an integer number (3236243023797).

Almost surely, 2^{12020331231233} is an apocalyptic number.

12020331231233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12020331231233 is a deficient number, since it is larger than the sum of its proper divisors (924640863955).

12020331231233 is an equidigital number, since it uses as much as digits as its factorization.

12020331231233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924640863954.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 12020331231233 its reverse (33213213302021), we get a palindrome (45233544533254).

The spelling of 12020331231233 in words is "twelve trillion, twenty billion, three hundred thirty-one million, two hundred thirty-one thousand, two hundred thirty-three".