1312231332112 has 20 divisors (see below), whose sum is σ = 2543720128000. Its totient is φ = 655787428128.

The previous prime is 1312231332079. The next prime is 1312231332133. The reversal of 1312231332112 is 2112331322131.

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, 20481888 + ... + 20545855.

It is an arithmetic number, because the mean of its divisors is an integer number (127186006400).

Almost surely, 2^{1312231332112} is an apocalyptic number.

It is an amenable number.

1312231332112 is a deficient number, since it is larger than the sum of its proper divisors (1231488795888).

1312231332112 is a wasteful number, since it uses less digits than its factorization.

1312231332112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41029750 (or 41029744 counting only the distinct ones).

The product of its digits is 1296, while the sum is 25.

Adding to 1312231332112 its reverse (2112331322131), we get a palindrome (3424562654243).

The spelling of 1312231332112 in words is "one trillion, three hundred twelve billion, two hundred thirty-one million, three hundred thirty-two thousand, one hundred twelve".