21003300095 has 8 divisors (see below), whose sum is σ = 25617140160. Its totient is φ = 16527186720.

The previous prime is 21003300061. The next prime is 21003300173. The reversal of 21003300095 is 59000330012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21003300095 - 2⁸ = 21003299839 is a prime.

It is a super-2 number, since 2×21003300095² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21003300095.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 34431335 + ... + 34431944.

It is an arithmetic number, because the mean of its divisors is an integer number (3202142520).

Almost surely, 2^21003300095 is an apocalyptic number.

21003300095 is a deficient number, since it is larger than the sum of its proper divisors (4613840065).

21003300095 is an equidigital number, since it uses as much as digits as its factorization.

21003300095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68863345.

The product of its (nonzero) digits is 810, while the sum is 23.

The spelling of 21003300095 in words is "twenty-one billion, three million, three hundred thousand, ninety-five".