21210430650235 has 8 divisors (see below), whose sum is σ = 26073309872736. Its totient is φ = 16554482458560.

The previous prime is 21210430650203. The next prime is 21210430650259. The reversal of 21210430650235 is 53205603401212.

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

It is not a de Polignac number, because 21210430650235 - 2⁵ = 21210430650203 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21210430650235.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51732757479 + ... + 51732757888.

It is an arithmetic number, because the mean of its divisors is an integer number (3259163734092).

Almost surely, 2^{21210430650235} is an apocalyptic number.

21210430650235 is a deficient number, since it is larger than the sum of its proper divisors (4862879222501).

21210430650235 is a wasteful number, since it uses less digits than its factorization.

21210430650235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103465515413.

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 21210430650235 in words is "twenty-one trillion, two hundred ten billion, four hundred thirty million, six hundred fifty thousand, two hundred thirty-five".