12031213012033 has 4 divisors (see below), whose sum is σ = 12084213950640. Its totient is φ = 11978212073428.

The previous prime is 12031213012009. The next prime is 12031213012069. The reversal of 12031213012033 is 33021031213021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12031213012033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031213011995 and 12031213012013.

It is not an unprimeable number, because it can be changed into a prime (12031213012073) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 26500468963 + ... + 26500469416.

It is an arithmetic number, because the mean of its divisors is an integer number (3021053487660).

Almost surely, 2^{12031213012033} is an apocalyptic number.

It is an amenable number.

12031213012033 is a deficient number, since it is larger than the sum of its proper divisors (53000938607).

12031213012033 is an equidigital number, since it uses as much as digits as its factorization.

12031213012033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53000938606.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12031213012033 its reverse (33021031213021), we get a palindrome (45052244225054).

The spelling of 12031213012033 in words is "twelve trillion, thirty-one billion, two hundred thirteen million, twelve thousand, thirty-three".