21410545304233 has 2 divisors, whose sum is σ = 21410545304234. Its totient is φ = 21410545304232.

The previous prime is 21410545304207. The next prime is 21410545304297. The reversal of 21410545304233 is 33240354501412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14786732003904 + 6623813300329 = 3845352^2 + 2573677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21410545304233 is a prime.

It is a super-2 number, since 2×21410545304233² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21410545304192 and 21410545304201.

It is not a weakly prime, because it can be changed into another prime (21410545304333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705272652116 + 10705272652117.

It is an arithmetic number, because the mean of its divisors is an integer number (10705272652117).

Almost surely, 2^{21410545304233} is an apocalyptic number.

It is an amenable number.

21410545304233 is a deficient number, since it is larger than the sum of its proper divisors (1).

21410545304233 is an equidigital number, since it uses as much as digits as its factorization.

21410545304233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 21410545304233 its reverse (33240354501412), we get a palindrome (54650899805645).

The spelling of 21410545304233 in words is "twenty-one trillion, four hundred ten billion, five hundred forty-five million, three hundred four thousand, two hundred thirty-three".