21410133247 has 2 divisors, whose sum is σ = 21410133248. Its totient is φ = 21410133246.

The previous prime is 21410133193. The next prime is 21410133271. The reversal of 21410133247 is 74233101412.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21410133247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21410137247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705066623 + 10705066624.

It is an arithmetic number, because the mean of its divisors is an integer number (10705066624).

Almost surely, 2^21410133247 is an apocalyptic number.

21410133247 is a deficient number, since it is larger than the sum of its proper divisors (1).

21410133247 is an equidigital number, since it uses as much as digits as its factorization.

21410133247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 21410133247 its reverse (74233101412), we get a palindrome (95643234659).

The spelling of 21410133247 in words is "twenty-one billion, four hundred ten million, one hundred thirty-three thousand, two hundred forty-seven".