20010130021 has 8 divisors (see below), whose sum is σ = 23090747264. Its totient is φ = 16985019600.

The previous prime is 20010130013. The next prime is 20010130031. The reversal of 20010130021 is 12003101002.

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 20010130021 - 2³ = 20010130013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010130001) 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, 13875930 + ... + 13877371.

It is an arithmetic number, because the mean of its divisors is an integer number (2886343408).

Almost surely, 2^20010130021 is an apocalyptic number.

It is an amenable number.

20010130021 is a deficient number, since it is larger than the sum of its proper divisors (3080617243).

20010130021 is a wasteful number, since it uses less digits than its factorization.

20010130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27753411.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 20010130021 its reverse (12003101002), we get a palindrome (32013231023).

The spelling of 20010130021 in words is "twenty billion, ten million, one hundred thirty thousand, twenty-one".