12303131012 has 12 divisors (see below), whose sum is σ = 21687637020. Its totient is φ = 6106663296.

The previous prime is 12303131011. The next prime is 12303131017. The reversal of 12303131012 is 21013130321.

It can be written as a sum of positive squares in 2 ways, for example, as 3865606276 + 8437524736 = 62174^2 + 91856^2 .

It is a super-2 number, since 2×12303131012² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12303131011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11224937 + ... + 11226032.

It is an arithmetic number, because the mean of its divisors is an integer number (1807303085).

Almost surely, 2^12303131012 is an apocalyptic number.

It is an amenable number.

12303131012 is a deficient number, since it is larger than the sum of its proper divisors (9384506008).

12303131012 is a wasteful number, since it uses less digits than its factorization.

12303131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22451110 (or 22451108 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12303131012 its reverse (21013130321), we get a palindrome (33316261333).

The spelling of 12303131012 in words is "twelve billion, three hundred three million, one hundred thirty-one thousand, twelve".