12320112001 has 4 divisors (see below), whose sum is σ = 12342231252. Its totient is φ = 12297992752.

The previous prime is 12320111983. The next prime is 12320112047. The reversal of 12320112001 is 10021102321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10021102321 = 47 ⋅213214943.

It can be written as a sum of positive squares in 2 ways, for example, as 7929724401 + 4390387600 = 89049^2 + 66260^2 .

It is a cyclic number.

It is not a de Polignac number, because 12320112001 - 2¹⁷ = 12319980929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320112061) 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, 11058790 + ... + 11059903.

It is an arithmetic number, because the mean of its divisors is an integer number (3085557813).

Almost surely, 2^12320112001 is an apocalyptic number.

It is an amenable number.

12320112001 is a deficient number, since it is larger than the sum of its proper divisors (22119251).

12320112001 is an equidigital number, since it uses as much as digits as its factorization.

12320112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22119250.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12320112001 its reverse (10021102321), we get a palindrome (22341214322).

The spelling of 12320112001 in words is "twelve billion, three hundred twenty million, one hundred twelve thousand, one".