12231310031 has 2 divisors, whose sum is σ = 12231310032. Its totient is φ = 12231310030.

The previous prime is 12231310009. The next prime is 12231310037. The reversal of 12231310031 is 13001313221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12231310031 - 2¹⁴ = 12231293647 is a prime.

It is a super-2 number, since 2×12231310031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12231309991 and 12231310009.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12231310037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115655015 + 6115655016.

It is an arithmetic number, because the mean of its divisors is an integer number (6115655016).

Almost surely, 2^12231310031 is an apocalyptic number.

12231310031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231310031 is an equidigital number, since it uses as much as digits as its factorization.

12231310031 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 17.

Adding to 12231310031 its reverse (13001313221), we get a palindrome (25232623252).

The spelling of 12231310031 in words is "twelve billion, two hundred thirty-one million, three hundred ten thousand, thirty-one".