21320003102303 has 8 divisors (see below), whose sum is σ = 22448218623600. Its totient is φ = 20192398590528.

The previous prime is 21320003102269. The next prime is 21320003102323. The reversal of 21320003102303 is 30320130002312.

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 21320003102303 - 2²⁸ = 21319734666847 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 (21320003102323) 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, 152680748 + ... + 152820321.

It is an arithmetic number, because the mean of its divisors is an integer number (2806027327950).

Almost surely, 2^{21320003102303} is an apocalyptic number.

21320003102303 is a deficient number, since it is larger than the sum of its proper divisors (1128215521297).

21320003102303 is a wasteful number, since it uses less digits than its factorization.

21320003102303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305504761.

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

Adding to 21320003102303 its reverse (30320130002312), we get a palindrome (51640133104615).

The spelling of 21320003102303 in words is "twenty-one trillion, three hundred twenty billion, three million, one hundred two thousand, three hundred three".