21002233303311 has 64 divisors (see below), whose sum is σ = 31337482014720. Its totient is φ = 12424265118720.

The previous prime is 21002233303309. The next prime is 21002233303313. The reversal of 21002233303311 is 11330333220012.

It is an interprime number because it is at equal distance from previous prime (21002233303309) and next prime (21002233303313).

It is not a de Polignac number, because 21002233303311 - 2¹ = 21002233303309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002233303313) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 202725321 + ... + 202828893.

It is an arithmetic number, because the mean of its divisors is an integer number (489648156480).

Almost surely, 2^{21002233303311} is an apocalyptic number.

21002233303311 is a deficient number, since it is larger than the sum of its proper divisors (10335248711409).

21002233303311 is a wasteful number, since it uses less digits than its factorization.

21002233303311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104736.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21002233303311 its reverse (11330333220012), we get a palindrome (32332566523323).

The spelling of 21002233303311 in words is "twenty-one trillion, two billion, two hundred thirty-three million, three hundred three thousand, three hundred eleven".