21330132303023 has 2 divisors, whose sum is σ = 21330132303024. Its totient is φ = 21330132303022.

The previous prime is 21330132303017. The next prime is 21330132303031. The reversal of 21330132303023 is 32030323103312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21330132303023 - 2¹⁰ = 21330132301999 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21330132302983 and 21330132303001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21330132306023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10665066151511 + 10665066151512.

It is an arithmetic number, because the mean of its divisors is an integer number (10665066151512).

Almost surely, 2^{21330132303023} is an apocalyptic number.

21330132303023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21330132303023 is an equidigital number, since it uses as much as digits as its factorization.

21330132303023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 21330132303023 its reverse (32030323103312), we get a palindrome (53360455406335).

The spelling of 21330132303023 in words is "twenty-one trillion, three hundred thirty billion, one hundred thirty-two million, three hundred three thousand, twenty-three".