21003320112023 has 2 divisors, whose sum is σ = 21003320112024. Its totient is φ = 21003320112022.

The previous prime is 21003320111971. The next prime is 21003320112041. The reversal of 21003320112023 is 32021102330012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21003320112023 - 2⁶ = 21003320111959 is a prime.

It is a super-2 number, since 2×21003320112023² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21003320111986 and 21003320112004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21003320162023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501660056011 + 10501660056012.

It is an arithmetic number, because the mean of its divisors is an integer number (10501660056012).

Almost surely, 2^{21003320112023} is an apocalyptic number.

21003320112023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21003320112023 is an equidigital number, since it uses as much as digits as its factorization.

21003320112023 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 20.

Adding to 21003320112023 its reverse (32021102330012), we get a palindrome (53024422442035).

The spelling of 21003320112023 in words is "twenty-one trillion, three billion, three hundred twenty million, one hundred twelve thousand, twenty-three".