20000142022321 has 4 divisors (see below), whose sum is σ = 20132593294144. Its totient is φ = 19867690750500.

The previous prime is 20000142022283. The next prime is 20000142022351. The reversal of 20000142022321 is 12322024100002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20000142022321 - 2⁷ = 20000142022193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20000142022351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66225635685 + ... + 66225635986.

It is an arithmetic number, because the mean of its divisors is an integer number (5033148323536).

Almost surely, 2^{20000142022321} is an apocalyptic number.

It is an amenable number.

20000142022321 is a deficient number, since it is larger than the sum of its proper divisors (132451271823).

20000142022321 is a wasteful number, since it uses less digits than its factorization.

20000142022321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132451271822.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20000142022321 its reverse (12322024100002), we get a palindrome (32322166122323).

The spelling of 20000142022321 in words is "twenty trillion, one hundred forty-two million, twenty-two thousand, three hundred twenty-one".