12333031213 has 4 divisors (see below), whose sum is σ = 12333307968. Its totient is φ = 12332754460.

The previous prime is 12333031159. The next prime is 12333031247. The reversal of 12333031213 is 31213033321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31213033321 = 53 ⋅588925157.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12333031213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12333031313) 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, 54643 + ... + 166288.

It is an arithmetic number, because the mean of its divisors is an integer number (3083326992).

Almost surely, 2^12333031213 is an apocalyptic number.

It is an amenable number.

12333031213 is a deficient number, since it is larger than the sum of its proper divisors (276755).

12333031213 is an equidigital number, since it uses as much as digits as its factorization.

12333031213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276754.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 12333031213 its reverse (31213033321), we get a palindrome (43546064534).

The spelling of 12333031213 in words is "twelve billion, three hundred thirty-three million, thirty-one thousand, two hundred thirteen".