1312023000985 has 8 divisors (see below), whose sum is σ = 1575721304136. Its totient is φ = 1048755932160.

The previous prime is 1312023000961. The next prime is 1312023000991. The reversal of 1312023000985 is 5890003202131.

It can be written as a sum of positive squares in 4 ways, for example, as 335689295769 + 976333705216 = 579387^2 + 988096^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1312023000985 - 2⁹ = 1312023000473 is a prime.

It is a super-2 number, since 2×1312023000985² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312023000985.

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, 107801886 + ... + 107814055.

It is an arithmetic number, because the mean of its divisors is an integer number (196965163017).

Almost surely, 2^{1312023000985} is an apocalyptic number.

It is an amenable number.

1312023000985 is a deficient number, since it is larger than the sum of its proper divisors (263698303151).

1312023000985 is a wasteful number, since it uses less digits than its factorization.

1312023000985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215617163.

The product of its (nonzero) digits is 12960, while the sum is 34.

The spelling of 1312023000985 in words is "one trillion, three hundred twelve billion, twenty-three million, nine hundred eighty-five", and thus it is an aban number.