21411413347 has 2 divisors, whose sum is σ = 21411413348. Its totient is φ = 21411413346.

The previous prime is 21411413341. The next prime is 21411413383. The reversal of 21411413347 is 74331411412.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21411413347 is a prime.

It is not a weakly prime, because it can be changed into another prime (21411413341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705706673 + 10705706674.

It is an arithmetic number, because the mean of its divisors is an integer number (10705706674).

Almost surely, 2^21411413347 is an apocalyptic number.

21411413347 is a deficient number, since it is larger than the sum of its proper divisors (1).

21411413347 is an equidigital number, since it uses as much as digits as its factorization.

21411413347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 31.

Adding to 21411413347 its reverse (74331411412), we get a palindrome (95742824759).

The spelling of 21411413347 in words is "twenty-one billion, four hundred eleven million, four hundred thirteen thousand, three hundred forty-seven".