1021020323303 has 8 divisors (see below), whose sum is σ = 1025226720000. Its totient is φ = 1016815027000.

The previous prime is 1021020323263. The next prime is 1021020323371. The reversal of 1021020323303 is 3033230201201.

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 1021020323303 - 2²⁰ = 1021019274727 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 (1021020320303) 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, 1611026 + ... + 2153472.

It is an arithmetic number, because the mean of its divisors is an integer number (128153340000).

Almost surely, 2^{1021020323303} is an apocalyptic number.

1021020323303 is a deficient number, since it is larger than the sum of its proper divisors (4206396697).

1021020323303 is an equidigital number, since it uses as much as digits as its factorization.

1021020323303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550197.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 1021020323303 its reverse (3033230201201), we get a palindrome (4054250524504).

The spelling of 1021020323303 in words is "one trillion, twenty-one billion, twenty million, three hundred twenty-three thousand, three hundred three".