12311301132212 has 6 divisors (see below), whose sum is σ = 21544776981378. Its totient is φ = 6155650566104.

The previous prime is 12311301132209. The next prime is 12311301132217. The reversal of 12311301132212 is 21223110311321.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7406431618576 + 4904869513636 = 2721476^2 + 2214694^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311301132217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1538912641523 + ... + 1538912641530.

It is an arithmetic number, because the mean of its divisors is an integer number (3590796163563).

Almost surely, 2^{12311301132212} is an apocalyptic number.

It is an amenable number.

12311301132212 is a deficient number, since it is larger than the sum of its proper divisors (9233475849166).

12311301132212 is a wasteful number, since it uses less digits than its factorization.

12311301132212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077825283057 (or 3077825283055 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12311301132212 its reverse (21223110311321), we get a palindrome (33534411443533).

The spelling of 12311301132212 in words is "twelve trillion, three hundred eleven billion, three hundred one million, one hundred thirty-two thousand, two hundred twelve".