12131021302302 has 64 divisors (see below), whose sum is σ = 28121691276288. Its totient is φ = 3416811552000.

The previous prime is 12131021302271. The next prime is 12131021302319. The reversal of 12131021302302 is 20320312013121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27336552 + ... + 27776772.

It is an arithmetic number, because the mean of its divisors is an integer number (439401426192).

Almost surely, 2^{12131021302302} is an apocalyptic number.

12131021302302 is an abundant number, since it is smaller than the sum of its proper divisors (15990669973986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12131021302302 is a wasteful number, since it uses less digits than its factorization.

12131021302302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449545.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12131021302302 its reverse (20320312013121), we get a palindrome (32451333315423).

The spelling of 12131021302302 in words is "twelve trillion, one hundred thirty-one billion, twenty-one million, three hundred two thousand, three hundred two".