1312103011986 has 48 divisors (see below), whose sum is σ = 3077436876696. Its totient is φ = 401632155648.

The previous prime is 1312103011949. The next prime is 1312103011993. The reversal of 1312103011986 is 6891103012131.

It is a happy number.

1312103011986 is a `hidden beast` number, since 131 + 210 + 301 + 1 + 9 + 8 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 537208373025 + 774894638961 = 732945^2 + 880281^2 .

It is a super-2 number, since 2×1312103011986² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312103011986.

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 23 ways as a sum of consecutive naturals, for example, 14481465 + ... + 14571788.

Almost surely, 2^{1312103011986} is an apocalyptic number.

1312103011986 is an abundant number, since it is smaller than the sum of its proper divisors (1765333864710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312103011986 is a wasteful number, since it uses less digits than its factorization.

1312103011986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29053467 (or 29053464 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The spelling of 1312103011986 in words is "one trillion, three hundred twelve billion, one hundred three million, eleven thousand, nine hundred eighty-six".