1331213322312 has 48 divisors (see below), whose sum is σ = 3610057951500. Its totient is φ = 443160723456.

The previous prime is 1331213322269. The next prime is 1331213322337. The reversal of 1331213322312 is 2132233121331.

1331213322312 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 21 + 3 + 322 + 312 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1194968177316 + 136245144996 = 1093146^2 + 369114^2 .

It is a nude number because it is divisible by every one of its digits.

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, 11966137 + ... + 12076872.

Almost surely, 2^{1331213322312} is an apocalyptic number.

1331213322312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331213322312 is an abundant number, since it is smaller than the sum of its proper divisors (2278844629188).

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

1331213322312 is a wasteful number, since it uses less digits than its factorization.

1331213322312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24043790 (or 24043783 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 1331213322312 its reverse (2132233121331), we get a palindrome (3463446443643).

The spelling of 1331213322312 in words is "one trillion, three hundred thirty-one billion, two hundred thirteen million, three hundred twenty-two thousand, three hundred twelve".