12131231302 has 16 divisors (see below), whose sum is σ = 19772467200. Its totient is φ = 5561005320.

The previous prime is 12131231293. The next prime is 12131231339. The reversal of 12131231302 is 20313213121.

12131231302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12131231302.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5147902 + ... + 5150257.

It is an arithmetic number, because the mean of its divisors is an integer number (1235779200).

Almost surely, 2^12131231302 is an apocalyptic number.

12131231302 is a deficient number, since it is larger than the sum of its proper divisors (7641235898).

12131231302 is a wasteful number, since it uses less digits than its factorization.

12131231302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10298211.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12131231302 its reverse (20313213121), we get a palindrome (32444444423).

The spelling of 12131231302 in words is "twelve billion, one hundred thirty-one million, two hundred thirty-one thousand, three hundred two".