12020312033 has 4 divisors (see below), whose sum is σ = 12025082628. Its totient is φ = 12015541440.

The previous prime is 12020312027. The next prime is 12020312039. The reversal of 12020312033 is 33021302021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12020312027) and next prime (12020312039).

It can be written as a sum of positive squares in 2 ways, for example, as 1984880704 + 10035431329 = 44552^2 + 100177^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020312033 - 2¹⁴ = 12020295649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020312039) 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, 2381516 + ... + 2386557.

It is an arithmetic number, because the mean of its divisors is an integer number (3006270657).

Almost surely, 2^12020312033 is an apocalyptic number.

It is an amenable number.

12020312033 is a deficient number, since it is larger than the sum of its proper divisors (4770595).

12020312033 is an equidigital number, since it uses as much as digits as its factorization.

12020312033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4770594.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12020312033 its reverse (33021302021), we get a palindrome (45041614054).

The spelling of 12020312033 in words is "twelve billion, twenty million, three hundred twelve thousand, thirty-three".