20010020001 has 8 divisors (see below), whose sum is σ = 26681136384. Its totient is φ = 13339458480.

The previous prime is 20010019963. The next prime is 20010020003. The reversal of 20010020001 is 10002001002.

It is a happy number.

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

It is not a de Polignac number, because 20010020001 - 2⁹ = 20010019489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20010020003) 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, 45646 + ... + 205191.

It is an arithmetic number, because the mean of its divisors is an integer number (3335142048).

Almost surely, 2^20010020001 is an apocalyptic number.

It is an amenable number.

20010020001 is a deficient number, since it is larger than the sum of its proper divisors (6671116383).

20010020001 is a wasteful number, since it uses less digits than its factorization.

20010020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277431.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 20010020001 its reverse (10002001002), we get a palindrome (30012021003).

The spelling of 20010020001 in words is "twenty billion, ten million, twenty thousand, one".