1021304011303 has 16 divisors (see below), whose sum is σ = 1032085501920. Its totient is φ = 1010582770176.

The previous prime is 1021304011289. The next prime is 1021304011331. The reversal of 1021304011303 is 3031104031201.

It is a cyclic number.

It is not a de Polignac number, because 1021304011303 - 2²¹ = 1021301914151 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 (1021304011103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72647451 + ... + 72661507.

It is an arithmetic number, because the mean of its divisors is an integer number (64505343870).

Almost surely, 2^{1021304011303} is an apocalyptic number.

1021304011303 is a deficient number, since it is larger than the sum of its proper divisors (10781490617).

1021304011303 is a wasteful number, since it uses less digits than its factorization.

1021304011303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16146.

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

Adding to 1021304011303 its reverse (3031104031201), we get a palindrome (4052408042504).

The spelling of 1021304011303 in words is "one trillion, twenty-one billion, three hundred four million, eleven thousand, three hundred three".