21153002200651 has 2 divisors, whose sum is σ = 21153002200652. Its totient is φ = 21153002200650.

The previous prime is 21153002200559. The next prime is 21153002200679. The reversal of 21153002200651 is 15600220035112.

It is an a-pointer prime, because the next prime (21153002200679) can be obtained adding 21153002200651 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21153002200651 - 2³⁵ = 21118642462283 is a prime.

It is not a weakly prime, because it can be changed into another prime (21153002200051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10576501100325 + 10576501100326.

It is an arithmetic number, because the mean of its divisors is an integer number (10576501100326).

Almost surely, 2^{21153002200651} is an apocalyptic number.

21153002200651 is a deficient number, since it is larger than the sum of its proper divisors (1).

21153002200651 is an equidigital number, since it uses as much as digits as its factorization.

21153002200651 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 21153002200651 its reverse (15600220035112), we get a palindrome (36753222235763).

The spelling of 21153002200651 in words is "twenty-one trillion, one hundred fifty-three billion, two million, two hundred thousand, six hundred fifty-one".