1312011103112 has 16 divisors (see below), whose sum is σ = 2460036957900. Its totient is φ = 656001247680.

The previous prime is 1312011103103. The next prime is 1312011103127. The reversal of 1312011103112 is 2113011102131.

It can be written as a sum of positive squares in 2 ways, for example, as 1311973231396 + 37871716 = 1145414^2 + 6154^2 .

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, 1024562 + ... + 1916702.

Almost surely, 2^{1312011103112} is an apocalyptic number.

It is an amenable number.

1312011103112 is a deficient number, since it is larger than the sum of its proper divisors (1148025854788).

1312011103112 is a wasteful number, since it uses less digits than its factorization.

1312011103112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1075976 (or 1075972 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1312011103112 its reverse (2113011102131), we get a palindrome (3425022205243).

The spelling of 1312011103112 in words is "one trillion, three hundred twelve billion, eleven million, one hundred three thousand, one hundred twelve".