12031012033 has 4 divisors (see below), whose sum is σ = 12031261360. Its totient is φ = 12030762708.

The previous prime is 12031012027. The next prime is 12031012043. The reversal of 12031012033 is 33021013021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33021013021 = 307 ⋅107560303.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12031012033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031011998 and 12031012016.

It is not an unprimeable number, because it can be changed into a prime (12031012043) 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, 26535 + ... + 157372.

It is an arithmetic number, because the mean of its divisors is an integer number (3007815340).

Almost surely, 2^12031012033 is an apocalyptic number.

It is an amenable number.

12031012033 is a deficient number, since it is larger than the sum of its proper divisors (249327).

12031012033 is an equidigital number, since it uses as much as digits as its factorization.

12031012033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249326.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12031012033 its reverse (33021013021), we get a palindrome (45052025054).

The spelling of 12031012033 in words is "twelve billion, thirty-one million, twelve thousand, thirty-three".