21410230451 has 2 divisors, whose sum is σ = 21410230452. Its totient is φ = 21410230450.

The previous prime is 21410230343. The next prime is 21410230453. The reversal of 21410230451 is 15403201412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21410230451 - 2²⁶ = 21343121587 is a prime.

Together with 21410230453, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (21410230453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10705115225 + 10705115226.

It is an arithmetic number, because the mean of its divisors is an integer number (10705115226).

Almost surely, 2^21410230451 is an apocalyptic number.

21410230451 is a deficient number, since it is larger than the sum of its proper divisors (1).

21410230451 is an equidigital number, since it uses as much as digits as its factorization.

21410230451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 21410230451 its reverse (15403201412), we get a palindrome (36813431863).

The spelling of 21410230451 in words is "twenty-one billion, four hundred ten million, two hundred thirty thousand, four hundred fifty-one".