1021312320013 has 8 divisors (see below), whose sum is σ = 1033636667616. Its totient is φ = 1008988434000.

The previous prime is 1021312319959. The next prime is 1021312320031. The reversal of 1021312320013 is 3100232131201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021312320013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021312320053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6873678 + ... + 7020688.

It is an arithmetic number, because the mean of its divisors is an integer number (129204583452).

Almost surely, 2^{1021312320013} is an apocalyptic number.

It is an amenable number.

1021312320013 is a deficient number, since it is larger than the sum of its proper divisors (12324347603).

1021312320013 is an equidigital number, since it uses as much as digits as its factorization.

1021312320013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230795.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1021312320013 its reverse (3100232131201), we get a palindrome (4121544451214).

The spelling of 1021312320013 in words is "one trillion, twenty-one billion, three hundred twelve million, three hundred twenty thousand, thirteen".