1312243244012 has 24 divisors (see below), whose sum is σ = 2304426632256. Its totient is φ = 653835953408.

The previous prime is 1312243243991. The next prime is 1312243244033. The reversal of 1312243244012 is 2104423422131.

It is an interprime number because it is at equal distance from previous prime (1312243243991) and next prime (1312243244033).

It is a super-2 number, since 2×1312243244012² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21479213 + ... + 21540219.

It is an arithmetic number, because the mean of its divisors is an integer number (96017776344).

Almost surely, 2^{1312243244012} is an apocalyptic number.

It is an amenable number.

1312243244012 is a deficient number, since it is larger than the sum of its proper divisors (992183388244).

1312243244012 is a wasteful number, since it uses less digits than its factorization.

1312243244012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79657 (or 79655 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1312243244012 its reverse (2104423422131), we get a palindrome (3416666666143).

The spelling of 1312243244012 in words is "one trillion, three hundred twelve billion, two hundred forty-three million, two hundred forty-four thousand, twelve".