12231311302 has 24 divisors (see below), whose sum is σ = 21796491744. Its totient is φ = 5130456912.

The previous prime is 12231311263. The next prime is 12231311329. The reversal of 12231311302 is 20311313221.

It is a self number, because there is not a number n which added to its sum of digits gives 12231311302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1323153 + ... + 1332364.

It is an arithmetic number, because the mean of its divisors is an integer number (908187156).

Almost surely, 2^12231311302 is an apocalyptic number.

12231311302 is a deficient number, since it is larger than the sum of its proper divisors (9565180442).

12231311302 is a wasteful number, since it uses less digits than its factorization.

12231311302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2655580 (or 2655573 counting only the distinct ones).

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

Adding to 12231311302 its reverse (20311313221), we get a palindrome (32542624523).

The spelling of 12231311302 in words is "twelve billion, two hundred thirty-one million, three hundred eleven thousand, three hundred two".