1312311112312 has 8 divisors (see below), whose sum is σ = 2460583335600. Its totient is φ = 656155556152.

The previous prime is 1312311112279. The next prime is 1312311112339. The reversal of 1312311112312 is 2132111132131.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82019444512 + ... + 82019444527.

It is an arithmetic number, because the mean of its divisors is an integer number (307572916950).

Almost surely, 2^{1312311112312} is an apocalyptic number.

It is an amenable number.

1312311112312 is a deficient number, since it is larger than the sum of its proper divisors (1148272223288).

1312311112312 is a wasteful number, since it uses less digits than its factorization.

1312311112312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164038889045 (or 164038889041 counting only the distinct ones).

The product of its digits is 216, while the sum is 22.

Adding to 1312311112312 its reverse (2132111132131), we get a palindrome (3444422244443).

The spelling of 1312311112312 in words is "one trillion, three hundred twelve billion, three hundred eleven million, one hundred twelve thousand, three hundred twelve".