1312103012008 has 128 divisors (see below), whose sum is σ = 2580321744000. Its totient is φ = 625001287680.

The previous prime is 1312103011993. The next prime is 1312103012009. The reversal of 1312103012008 is 8002103012131.

It is a happy number.

It is a super-2 number, since 2×1312103012008² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312103012008.

It is not an unprimeable number, because it can be changed into a prime (1312103012009) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1485959935 + ... + 1485960817.

It is an arithmetic number, because the mean of its divisors is an integer number (20158763625).

Almost surely, 2^{1312103012008} is an apocalyptic number.

It is an amenable number.

1312103012008 is a deficient number, since it is larger than the sum of its proper divisors (1268218731992).

1312103012008 is a wasteful number, since it uses less digits than its factorization.

1312103012008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1595 (or 1591 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 1312103012008 its reverse (8002103012131), we get a palindrome (9314206024139).

The spelling of 1312103012008 in words is "one trillion, three hundred twelve billion, one hundred three million, twelve thousand, eight".