21032231330023 has 2 divisors, whose sum is σ = 21032231330024. Its totient is φ = 21032231330022.

The previous prime is 21032231330017. The next prime is 21032231330113. The reversal of 21032231330023 is 32003313223012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21032231330023 - 2³⁷ = 20894792376551 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21032231330023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21032231336023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516115665011 + 10516115665012.

It is an arithmetic number, because the mean of its divisors is an integer number (10516115665012).

Almost surely, 2^{21032231330023} is an apocalyptic number.

21032231330023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21032231330023 is an equidigital number, since it uses as much as digits as its factorization.

21032231330023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 21032231330023 its reverse (32003313223012), we get a palindrome (53035544553035).

The spelling of 21032231330023 in words is "twenty-one trillion, thirty-two billion, two hundred thirty-one million, three hundred thirty thousand, twenty-three".