21303110232211 has 2 divisors, whose sum is σ = 21303110232212. Its totient is φ = 21303110232210.

The previous prime is 21303110232199. The next prime is 21303110232221. The reversal of 21303110232211 is 11223201130312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21303110232211 - 2⁴¹ = 19104086976659 is a prime.

It is not a weakly prime, because it can be changed into another prime (21303110232221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651555116105 + 10651555116106.

It is an arithmetic number, because the mean of its divisors is an integer number (10651555116106).

Almost surely, 2^{21303110232211} is an apocalyptic number.

21303110232211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21303110232211 is an equidigital number, since it uses as much as digits as its factorization.

21303110232211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21303110232211 its reverse (11223201130312), we get a palindrome (32526311362523).

The spelling of 21303110232211 in words is "twenty-one trillion, three hundred three billion, one hundred ten million, two hundred thirty-two thousand, two hundred eleven".