20010130321 has 8 divisors (see below), whose sum is σ = 20552712680. Its totient is φ = 19467641088.

The previous prime is 20010130199. The next prime is 20010130339. The reversal of 20010130321 is 12303101002.

It can be written as a sum of positive squares in 4 ways, for example, as 7299822721 + 12710307600 = 85439^2 + 112740^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20010130321 - 2⁹ = 20010129809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20010130391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826825 + ... + 850681.

It is an arithmetic number, because the mean of its divisors is an integer number (2569089085).

Almost surely, 2^20010130321 is an apocalyptic number.

It is an amenable number.

20010130321 is a deficient number, since it is larger than the sum of its proper divisors (542582359).

20010130321 is a wasteful number, since it uses less digits than its factorization.

20010130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46563.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20010130321 its reverse (12303101002), we get a palindrome (32313231323).

The spelling of 20010130321 in words is "twenty billion, ten million, one hundred thirty thousand, three hundred twenty-one".