1331212323412 has 12 divisors (see below), whose sum is σ = 2330043561076. Its totient is φ = 665485591680.

The previous prime is 1331212323383. The next prime is 1331212323487. The reversal of 1331212323412 is 2143232121331.

It can be written as a sum of positive squares in 2 ways, for example, as 796813310736 + 534399012676 = 892644^2 + 731026^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30117663 + ... + 30161830.

Almost surely, 2^{1331212323412} is an apocalyptic number.

It is an amenable number.

1331212323412 is a deficient number, since it is larger than the sum of its proper divisors (998831237664).

1331212323412 is a wasteful number, since it uses less digits than its factorization.

1331212323412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60285018 (or 60285016 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

Adding to 1331212323412 its reverse (2143232121331), we get a palindrome (3474444444743).

The spelling of 1331212323412 in words is "one trillion, three hundred thirty-one billion, two hundred twelve million, three hundred twenty-three thousand, four hundred twelve".