21200303001091 has 16 divisors (see below), whose sum is σ = 22611593815200. Its totient is φ = 19807418928640.

The previous prime is 21200303001077. The next prime is 21200303001103. The reversal of 21200303001091 is 19010030300212.

It is not a de Polignac number, because 21200303001091 - 2¹⁹ = 21200302476803 is a prime.

It is a super-2 number, since 2×21200303001091² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21200303001791) 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 in 15 ways as a sum of consecutive naturals, for example, 1712121 + ... + 6732901.

It is an arithmetic number, because the mean of its divisors is an integer number (1413224613450).

Almost surely, 2^{21200303001091} is an apocalyptic number.

21200303001091 is a deficient number, since it is larger than the sum of its proper divisors (1411290814109).

21200303001091 is a wasteful number, since it uses less digits than its factorization.

21200303001091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5022614.

The product of its (nonzero) digits is 324, while the sum is 22.

The spelling of 21200303001091 in words is "twenty-one trillion, two hundred billion, three hundred three million, one thousand, ninety-one".