12000330031 has 4 divisors (see below), whose sum is σ = 12018540600. Its totient is φ = 11982119464.

The previous prime is 12000330029. The next prime is 12000330157. The reversal of 12000330031 is 13003300021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13003300021 = 31 ⋅419461291.

It is a cyclic number.

It is not a de Polignac number, because 12000330031 - 2¹ = 12000330029 is a prime.

It is a super-2 number, since 2×12000330031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000329993 and 12000330020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000300031) 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, 9104296 + ... + 9105613.

It is an arithmetic number, because the mean of its divisors is an integer number (3004635150).

Almost surely, 2^12000330031 is an apocalyptic number.

12000330031 is a deficient number, since it is larger than the sum of its proper divisors (18210569).

12000330031 is an equidigital number, since it uses as much as digits as its factorization.

12000330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18210568.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 12000330031 its reverse (13003300021), we get a palindrome (25003630052).

The spelling of 12000330031 in words is "twelve billion, three hundred thirty thousand, thirty-one".