1312300321985 has 16 divisors (see below), whose sum is σ = 1584615960000. Its totient is φ = 1043277713856.

The previous prime is 1312300321963. The next prime is 1312300321991. The reversal of 1312300321985 is 5891230032131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1312300321985 - 2⁶ = 1312300321921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 852527 + ... + 1830683.

It is an arithmetic number, because the mean of its divisors is an integer number (99038497500).

Almost surely, 2^{1312300321985} is an apocalyptic number.

It is an amenable number.

1312300321985 is a deficient number, since it is larger than the sum of its proper divisors (272315638015).

1312300321985 is a wasteful number, since it uses less digits than its factorization.

1312300321985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979840.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 1312300321985 in words is "one trillion, three hundred twelve billion, three hundred million, three hundred twenty-one thousand, nine hundred eighty-five".