12020310031 has 4 divisors (see below), whose sum is σ = 12032924112. Its totient is φ = 12007695952.

The previous prime is 12020309981. The next prime is 12020310041. The reversal of 12020310031 is 13001302021.

12020310031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12020310031 - 2¹¹ = 12020307983 is a prime.

It is a super-2 number, since 2×12020310031² (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 = 12020309993 and 12020310020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020310041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6305611 + ... + 6307516.

It is an arithmetic number, because the mean of its divisors is an integer number (3008231028).

Almost surely, 2^12020310031 is an apocalyptic number.

12020310031 is a deficient number, since it is larger than the sum of its proper divisors (12614081).

12020310031 is an equidigital number, since it uses as much as digits as its factorization.

12020310031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12614080.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 12020310031 its reverse (13001302021), we get a palindrome (25021612052).

The spelling of 12020310031 in words is "twelve billion, twenty million, three hundred ten thousand, thirty-one".