21410304911 has 2 divisors, whose sum is σ = 21410304912. Its totient is φ = 21410304910.

The previous prime is 21410304899. The next prime is 21410304943. The reversal of 21410304911 is 11940301412.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21410304911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21410304511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705152455 + 10705152456.

It is an arithmetic number, because the mean of its divisors is an integer number (10705152456).

Almost surely, 2^21410304911 is an apocalyptic number.

21410304911 is a deficient number, since it is larger than the sum of its proper divisors (1).

21410304911 is an equidigital number, since it uses as much as digits as its factorization.

21410304911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 21410304911 in words is "twenty-one billion, four hundred ten million, three hundred four thousand, nine hundred eleven".