1020201320323 has 8 divisors (see below), whose sum is σ = 1032722636400. Its totient is φ = 1007755662240.

The previous prime is 1020201320321. The next prime is 1020201320339. The reversal of 1020201320323 is 3230231020201.

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 1020201320323 - 2¹ = 1020201320321 is a prime.

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 1020201320323.

It is not an unprimeable number, because it can be changed into a prime (1020201320321) 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 7 ways as a sum of consecutive naturals, for example, 18887365 + ... + 18941302.

It is an arithmetic number, because the mean of its divisors is an integer number (129090329550).

Almost surely, 2^{1020201320323} is an apocalyptic number.

1020201320323 is a deficient number, since it is larger than the sum of its proper divisors (12521316077).

1020201320323 is a wasteful number, since it uses less digits than its factorization.

1020201320323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37828997.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1020201320323 its reverse (3230231020201), we get a palindrome (4250432340524).

The spelling of 1020201320323 in words is "one trillion, twenty billion, two hundred one million, three hundred twenty thousand, three hundred twenty-three".