20343024132221 has 32 divisors (see below), whose sum is σ = 24226022665728. Its totient is φ = 16718235770880.

The previous prime is 20343024132209. The next prime is 20343024132247. The reversal of 20343024132221 is 12223142034302.

It is not a de Polignac number, because 20343024132221 - 2⁶ = 20343024132157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343024122221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36371741 + ... + 36926813.

It is an arithmetic number, because the mean of its divisors is an integer number (757063208304).

Almost surely, 2^{20343024132221} is an apocalyptic number.

It is an amenable number.

20343024132221 is a deficient number, since it is larger than the sum of its proper divisors (3882998533507).

20343024132221 is a wasteful number, since it uses less digits than its factorization.

20343024132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557181.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 20343024132221 its reverse (12223142034302), we get a palindrome (32566166166523).

The spelling of 20343024132221 in words is "twenty trillion, three hundred forty-three billion, twenty-four million, one hundred thirty-two thousand, two hundred twenty-one".