21410001313 has 2 divisors, whose sum is σ = 21410001314. Its totient is φ = 21410001312.

The previous prime is 21410001307. The next prime is 21410001337. The reversal of 21410001313 is 31310001412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21319504144 + 90497169 = 146012^2 + 9513^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21410001313 is a prime.

It is not a weakly prime, because it can be changed into another prime (21410001343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705000656 + 10705000657.

It is an arithmetic number, because the mean of its divisors is an integer number (10705000657).

Almost surely, 2^21410001313 is an apocalyptic number.

It is an amenable number.

21410001313 is a deficient number, since it is larger than the sum of its proper divisors (1).

21410001313 is an equidigital number, since it uses as much as digits as its factorization.

21410001313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21410001313 its reverse (31310001412), we get a palindrome (52720002725).

Subtracting 21410001313 from its reverse (31310001412), we obtain a palindrome (9900000099).

The spelling of 21410001313 in words is "twenty-one billion, four hundred ten million, one thousand, three hundred thirteen".