12310031331 has 24 divisors (see below), whose sum is σ = 19809251280. Its totient is φ = 7314181056.

The previous prime is 12310031317. The next prime is 12310031339. The reversal of 12310031331 is 13313001321.

It is a happy number.

12310031331 is a `hidden beast` number, since 12 + 310 + 0 + 313 + 31 = 666.

It is not a de Polignac number, because 12310031331 - 2¹¹ = 12310029283 is a prime.

It is a super-2 number, since 2×12310031331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12310031339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1810641 + ... + 1817426.

It is an arithmetic number, because the mean of its divisors is an integer number (825385470).

Almost surely, 2^12310031331 is an apocalyptic number.

12310031331 is a deficient number, since it is larger than the sum of its proper divisors (7499219949).

12310031331 is a wasteful number, since it uses less digits than its factorization.

12310031331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3628115 (or 3628112 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 12310031331 its reverse (13313001321), we get a palindrome (25623032652).

The spelling of 12310031331 in words is "twelve billion, three hundred ten million, thirty-one thousand, three hundred thirty-one".