21332211023 has 2 divisors, whose sum is σ = 21332211024. Its totient is φ = 21332211022.

The previous prime is 21332211011. The next prime is 21332211029. The reversal of 21332211023 is 32011223312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21332211023 - 2³⁴ = 4152341839 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21332210986 and 21332211004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21332211029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10666105511 + 10666105512.

It is an arithmetic number, because the mean of its divisors is an integer number (10666105512).

Almost surely, 2^21332211023 is an apocalyptic number.

21332211023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21332211023 is an equidigital number, since it uses as much as digits as its factorization.

21332211023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21332211023 its reverse (32011223312), we get a palindrome (53343434335).

The spelling of 21332211023 in words is "twenty-one billion, three hundred thirty-two million, two hundred eleven thousand, twenty-three".