12310031330 has 32 divisors (see below), whose sum is σ = 23528049264. Its totient is φ = 4621213696.

The previous prime is 12310031317. The next prime is 12310031339. The reversal of 12310031330 is 3313001321.

It can be written as a sum of positive squares in 8 ways, for example, as 5176370809 + 7133660521 = 71947^2 + 84461^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 12310031299 and 12310031308.

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 15 ways as a sum of consecutive naturals, for example, 42557 + ... + 162576.

Almost surely, 2^12310031330 is an apocalyptic number.

12310031330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12310031330 is a deficient number, since it is larger than the sum of its proper divisors (11218017934).

12310031330 is a wasteful number, since it uses less digits than its factorization.

12310031330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205510.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 12310031330 its reverse (3313001321), we get a palindrome (15623032651).

The spelling of 12310031330 in words is "twelve billion, three hundred ten million, thirty-one thousand, three hundred thirty".