12021330031 has 2 divisors, whose sum is σ = 12021330032. Its totient is φ = 12021330030.

The previous prime is 12021330019. The next prime is 12021330047. The reversal of 12021330031 is 13003312021.

It is an a-pointer prime, because the next prime (12021330047) can be obtained adding 12021330031 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12021330031 - 2¹³ = 12021321839 is a prime.

It is a super-2 number, since 2×12021330031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12021329987 and 12021330014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021330631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010665015 + 6010665016.

It is an arithmetic number, because the mean of its divisors is an integer number (6010665016).

Almost surely, 2^12021330031 is an apocalyptic number.

12021330031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021330031 is an equidigital number, since it uses as much as digits as its factorization.

12021330031 is an evil number, because the sum of its binary digits is even.

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

Adding to 12021330031 its reverse (13003312021), we get a palindrome (25024642052).

The spelling of 12021330031 in words is "twelve billion, twenty-one million, three hundred thirty thousand, thirty-one".