12312320223233 has 4 divisors (see below), whose sum is σ = 12387855930288. Its totient is φ = 12236784516180.

The previous prime is 12312320223223. The next prime is 12312320223289. The reversal of 12312320223233 is 33232202321321.

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-12312320223233 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12312320223196 and 12312320223205.

It is not an unprimeable number, because it can be changed into a prime (12312320223223) 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, 37767853283 + ... + 37767853608.

It is an arithmetic number, because the mean of its divisors is an integer number (3096963982572).

Almost surely, 2^{12312320223233} is an apocalyptic number.

It is an amenable number.

12312320223233 is a deficient number, since it is larger than the sum of its proper divisors (75535707055).

12312320223233 is an equidigital number, since it uses as much as digits as its factorization.

12312320223233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75535707054.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 12312320223233 its reverse (33232202321321), we get a palindrome (45544522544554).

The spelling of 12312320223233 in words is "twelve trillion, three hundred twelve billion, three hundred twenty million, two hundred twenty-three thousand, two hundred thirty-three".