20442424341321 has 48 divisors (see below), whose sum is σ = 29722883014656. Its totient is φ = 13538639425248.

The previous prime is 20442424341299. The next prime is 20442424341379. The reversal of 20442424341321 is 12314342424402.

20442424341321 is a `hidden beast` number, since 2 + 0 + 44 + 242 + 4 + 341 + 32 + 1 = 666.

It is not a de Polignac number, because 20442424341321 - 2²¹ = 20442422244169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20442424341421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3674709486 + ... + 3674715048.

It is an arithmetic number, because the mean of its divisors is an integer number (619226729472).

Almost surely, 2^{20442424341321} is an apocalyptic number.

It is an amenable number.

20442424341321 is a deficient number, since it is larger than the sum of its proper divisors (9280458673335).

20442424341321 is a wasteful number, since it uses less digits than its factorization.

20442424341321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10002 (or 9999 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 20442424341321 its reverse (12314342424402), we get a palindrome (32756766765723).

The spelling of 20442424341321 in words is "twenty trillion, four hundred forty-two billion, four hundred twenty-four million, three hundred forty-one thousand, three hundred twenty-one".