1321300021013 has 8 divisors (see below), whose sum is σ = 1558768688640. Its totient is φ = 1096009233840.

The previous prime is 1321300020991. The next prime is 1321300021043. The reversal of 1321300021013 is 3101200031231.

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

It is a cyclic number.

It is not a de Polignac number, because 1321300021013 - 2⁸ = 1321300020757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321300020982 and 1321300021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321300021043) 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, 3044469878 + ... + 3044470311.

It is an arithmetic number, because the mean of its divisors is an integer number (194846086080).

Almost surely, 2^{1321300021013} is an apocalyptic number.

It is an amenable number.

1321300021013 is a deficient number, since it is larger than the sum of its proper divisors (237468667627).

1321300021013 is an equidigital number, since it uses as much as digits as its factorization.

1321300021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6088940227.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1321300021013 its reverse (3101200031231), we get a palindrome (4422500052244).

The spelling of 1321300021013 in words is "one trillion, three hundred twenty-one billion, three hundred million, twenty-one thousand, thirteen".