12012330031 has 16 divisors (see below), whose sum is σ = 13038732000. Its totient is φ = 11000844288.

The previous prime is 12012330007. The next prime is 12012330049. The reversal of 12012330031 is 13003321021.

It is a cyclic number.

It is not a de Polignac number, because 12012330031 - 2⁹ = 12012329519 is a prime.

It is a super-2 number, since 2×12012330031² (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 = 12012329987 and 12012330014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012330731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039075 + ... + 1050571.

It is an arithmetic number, because the mean of its divisors is an integer number (814920750).

Almost surely, 2^12012330031 is an apocalyptic number.

12012330031 is a deficient number, since it is larger than the sum of its proper divisors (1026401969).

12012330031 is a wasteful number, since it uses less digits than its factorization.

12012330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12138.

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

Adding to 12012330031 its reverse (13003321021), we get a palindrome (25015651052).

The spelling of 12012330031 in words is "twelve billion, twelve million, three hundred thirty thousand, thirty-one".