1312103113012 has 24 divisors (see below), whose sum is σ = 2371538717856. Its totient is φ = 634805800608.

The previous prime is 1312103112997. The next prime is 1312103113021. The reversal of 1312103113012 is 2103113012131.

It is a super-2 number, since 2×1312103113012² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35628823 + ... + 35665630.

It is an arithmetic number, because the mean of its divisors is an integer number (98814113244).

Almost surely, 2^{1312103113012} is an apocalyptic number.

It is an amenable number.

1312103113012 is a deficient number, since it is larger than the sum of its proper divisors (1059435604844).

1312103113012 is a wasteful number, since it uses less digits than its factorization.

1312103113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71294607 (or 71294605 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1312103113012 its reverse (2103113012131), we get a palindrome (3415216125143).

The spelling of 1312103113012 in words is "one trillion, three hundred twelve billion, one hundred three million, one hundred thirteen thousand, twelve".