1020331202013 has 16 divisors (see below), whose sum is σ = 1511632566400. Its totient is φ = 680206947840.

The previous prime is 1020331201999. The next prime is 1020331202021. The reversal of 1020331202013 is 3102021330201.

It is not a de Polignac number, because 1020331202013 - 2⁴ = 1020331201997 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 (1020331202053) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1064733 + ... + 1781661.

It is an arithmetic number, because the mean of its divisors is an integer number (94477035400).

Almost surely, 2^{1020331202013} is an apocalyptic number.

It is an amenable number.

1020331202013 is a deficient number, since it is larger than the sum of its proper divisors (491301364387).

1020331202013 is an equidigital number, since it uses as much as digits as its factorization.

1020331202013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769649 (or 769643 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1020331202013 its reverse (3102021330201), we get a palindrome (4122352532214).

The spelling of 1020331202013 in words is "one trillion, twenty billion, three hundred thirty-one million, two hundred two thousand, thirteen".