20042130010321 has 4 divisors (see below), whose sum is σ = 20381827129200. Its totient is φ = 19702432891444.

The previous prime is 20042130010229. The next prime is 20042130010327. The reversal of 20042130010321 is 12301003124002.

It is a happy number.

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 20042130010321 - 2²¹ = 20042127913169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20042130010327) 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, 169848559351 + ... + 169848559468.

It is an arithmetic number, because the mean of its divisors is an integer number (5095456782300).

Almost surely, 2^{20042130010321} is an apocalyptic number.

It is an amenable number.

20042130010321 is a deficient number, since it is larger than the sum of its proper divisors (339697118879).

20042130010321 is an equidigital number, since it uses as much as digits as its factorization.

20042130010321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339697118878.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20042130010321 its reverse (12301003124002), we get a palindrome (32343133134323).

The spelling of 20042130010321 in words is "twenty trillion, forty-two billion, one hundred thirty million, ten thousand, three hundred twenty-one".