21434002411 has 2 divisors, whose sum is σ = 21434002412. Its totient is φ = 21434002410.

The previous prime is 21434002393. The next prime is 21434002453. The reversal of 21434002411 is 11420043412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21434002411 - 2¹⁷ = 21433871339 is a prime.

It is not a weakly prime, because it can be changed into another prime (21434002211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10717001205 + 10717001206.

It is an arithmetic number, because the mean of its divisors is an integer number (10717001206).

Almost surely, 2^21434002411 is an apocalyptic number.

21434002411 is a deficient number, since it is larger than the sum of its proper divisors (1).

21434002411 is an equidigital number, since it uses as much as digits as its factorization.

21434002411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21434002411 its reverse (11420043412), we get a palindrome (32854045823).

The spelling of 21434002411 in words is "twenty-one billion, four hundred thirty-four million, two thousand, four hundred eleven".