21301020232303 has 32 divisors (see below), whose sum is σ = 25506271162368. Its totient is φ = 17404040332800.

The previous prime is 21301020232291. The next prime is 21301020232321. The reversal of 21301020232303 is 30323202010312.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21301020232303 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 (21301020236303) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 229102701 + ... + 229195657.

It is an arithmetic number, because the mean of its divisors is an integer number (797070973824).

Almost surely, 2^{21301020232303} is an apocalyptic number.

21301020232303 is a deficient number, since it is larger than the sum of its proper divisors (4205250930065).

21301020232303 is a wasteful number, since it uses less digits than its factorization.

21301020232303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108823.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 21301020232303 its reverse (30323202010312), we get a palindrome (51624222242615).

The spelling of 21301020232303 in words is "twenty-one trillion, three hundred one billion, twenty million, two hundred thirty-two thousand, three hundred three".