21341004313 has 2 divisors, whose sum is σ = 21341004314. Its totient is φ = 21341004312.

The previous prime is 21341004301. The next prime is 21341004323. The reversal of 21341004313 is 31340014312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18650818624 + 2690185689 = 136568^2 + 51867^2 .

It is a cyclic number.

It is not a de Polignac number, because 21341004313 - 2²⁵ = 21307449881 is a prime.

It is not a weakly prime, because it can be changed into another prime (21341004323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10670502156 + 10670502157.

It is an arithmetic number, because the mean of its divisors is an integer number (10670502157).

Almost surely, 2^21341004313 is an apocalyptic number.

It is an amenable number.

21341004313 is a deficient number, since it is larger than the sum of its proper divisors (1).

21341004313 is an equidigital number, since it uses as much as digits as its factorization.

21341004313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21341004313 its reverse (31340014312), we get a palindrome (52681018625).

Subtracting 21341004313 from its reverse (31340014312), we obtain a palindrome (9999009999).

The spelling of 21341004313 in words is "twenty-one billion, three hundred forty-one million, four thousand, three hundred thirteen".