12321310033 has 4 divisors (see below), whose sum is σ = 12356214948. Its totient is φ = 12286405120.

The previous prime is 12321309977. The next prime is 12321310039. The reversal of 12321310033 is 33001312321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 33001312321 = 2411 ⋅13687811.

It can be written as a sum of positive squares in 2 ways, for example, as 2789107344 + 9532202689 = 52812^2 + 97633^2 .

It is a cyclic number.

It is not a de Polignac number, because 12321310033 - 2¹³ = 12321301841 is a prime.

It is a super-2 number, since 2×12321310033² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12321310039) 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, 17451928 + ... + 17452633.

It is an arithmetic number, because the mean of its divisors is an integer number (3089053737).

Almost surely, 2^12321310033 is an apocalyptic number.

It is an amenable number.

12321310033 is a deficient number, since it is larger than the sum of its proper divisors (34904915).

12321310033 is an equidigital number, since it uses as much as digits as its factorization.

12321310033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34904914.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12321310033 its reverse (33001312321), we get a palindrome (45322622354).

The spelling of 12321310033 in words is "twelve billion, three hundred twenty-one million, three hundred ten thousand, thirty-three".