21050275272703 has 8 divisors (see below), whose sum is σ = 21064414750880. Its totient is φ = 21036137529600.

The previous prime is 21050275272671. The next prime is 21050275272713. The reversal of 21050275272703 is 30727257205012.

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

It is a cyclic number.

It is not a de Polignac number, because 21050275272703 - 2⁵ = 21050275272671 is a prime.

It is a super-2 number, since 2×21050275272703² (a number of 27 digits) contains 22 as substring.

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 21050275272703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21050275272713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24311878 + ... + 25162828.

It is an arithmetic number, because the mean of its divisors is an integer number (2633051843860).

Almost surely, 2^{21050275272703} is an apocalyptic number.

21050275272703 is a deficient number, since it is larger than the sum of its proper divisors (14139478177).

21050275272703 is a wasteful number, since it uses less digits than its factorization.

21050275272703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867537.

The product of its (nonzero) digits is 411600, while the sum is 43.

The spelling of 21050275272703 in words is "twenty-one trillion, fifty billion, two hundred seventy-five million, two hundred seventy-two thousand, seven hundred three".