21331133032311 has 24 divisors (see below), whose sum is σ = 31923371544480. Its totient is φ = 13709162757696.

The previous prime is 21331133032309. The next prime is 21331133032337. The reversal of 21331133032311 is 11323033113312.

21331133032311 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 1 + 1 + 330 + 323 + 1 + 1 = 666.

It is not a de Polignac number, because 21331133032311 - 2¹ = 21331133032309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21331133032301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62990700 + ... + 63328433.

It is an arithmetic number, because the mean of its divisors is an integer number (1330140481020).

Almost surely, 2^{21331133032311} is an apocalyptic number.

21331133032311 is a deficient number, since it is larger than the sum of its proper divisors (10592238512169).

21331133032311 is a wasteful number, since it uses less digits than its factorization.

21331133032311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126319815 (or 126319812 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 27.

Adding to 21331133032311 its reverse (11323033113312), we get a palindrome (32654166145623).

The spelling of 21331133032311 in words is "twenty-one trillion, three hundred thirty-one billion, one hundred thirty-three million, thirty-two thousand, three hundred eleven".