21311411223303 has 80 divisors (see below), whose sum is σ = 32549455192320. Its totient is φ = 13891768012800.

The previous prime is 21311411223269. The next prime is 21311411223359. The reversal of 21311411223303 is 30332211411312.

21311411223303 is a `hidden beast` number, since 2 + 1 + 3 + 11 + 411 + 2 + 233 + 0 + 3 = 666.

It is not a de Polignac number, because 21311411223303 - 2¹² = 21311411219207 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21311411223383) by changing a digit.

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 79 ways as a sum of consecutive naturals, for example, 848675718 + ... + 848700828.

It is an arithmetic number, because the mean of its divisors is an integer number (406868189904).

Almost surely, 2^{21311411223303} is an apocalyptic number.

21311411223303 is a deficient number, since it is larger than the sum of its proper divisors (11238043969017).

21311411223303 is a wasteful number, since it uses less digits than its factorization.

21311411223303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26130 (or 26121 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

Adding to 21311411223303 its reverse (30332211411312), we get a palindrome (51643622634615).

The spelling of 21311411223303 in words is "twenty-one trillion, three hundred eleven billion, four hundred eleven million, two hundred twenty-three thousand, three hundred three".