12312122112233 has 4 divisors (see below), whose sum is σ = 12354143007108. Its totient is φ = 12270101217360.

The previous prime is 12312122112229. The next prime is 12312122112271. The reversal of 12312122112233 is 33221122121321.

12312122112233 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11995049511769 + 317072600464 = 3463387^2 + 563092^2 .

It is a cyclic number.

It is not a de Polignac number, because 12312122112233 - 2² = 12312122112229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12312122112833) 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, 21010446998 + ... + 21010447583.

It is an arithmetic number, because the mean of its divisors is an integer number (3088535751777).

Almost surely, 2^{12312122112233} is an apocalyptic number.

It is an amenable number.

12312122112233 is a deficient number, since it is larger than the sum of its proper divisors (42020894875).

12312122112233 is an equidigital number, since it uses as much as digits as its factorization.

12312122112233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42020894874.

The product of its digits is 1728, while the sum is 26.

Adding to 12312122112233 its reverse (33221122121321), we get a palindrome (45533244233554).

The spelling of 12312122112233 in words is "twelve trillion, three hundred twelve billion, one hundred twenty-two million, one hundred twelve thousand, two hundred thirty-three".