21020113332234 has 24 divisors (see below), whose sum is σ = 46315503954720. Its totient is φ = 6887946741288.

The previous prime is 21020113332233. The next prime is 21020113332259. The reversal of 21020113332234 is 43223331102012.

21020113332234 is a `hidden beast` number, since 2 + 1 + 0 + 201 + 133 + 322 + 3 + 4 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 21020113332198 and 21020113332207.

It is not an unprimeable number, because it can be changed into a prime (21020113332233) 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 11 ways as a sum of consecutive naturals, for example, 9896474142 + ... + 9896476265.

It is an arithmetic number, because the mean of its divisors is an integer number (1929812664780).

Almost surely, 2^{21020113332234} is an apocalyptic number.

21020113332234 is an abundant number, since it is smaller than the sum of its proper divisors (25295390622486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21020113332234 is a wasteful number, since it uses less digits than its factorization.

21020113332234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19792950474 (or 19792950471 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 21020113332234 its reverse (43223331102012), we get a palindrome (64243444434246).

The spelling of 21020113332234 in words is "twenty-one trillion, twenty billion, one hundred thirteen million, three hundred thirty-two thousand, two hundred thirty-four".