20010110001 has 32 divisors (see below), whose sum is σ = 30813635328. Its totient is φ = 11313734400.

The previous prime is 20010109991. The next prime is 20010110023. The reversal of 20010110001 is 10001101002.

It is not a de Polignac number, because 20010110001 - 2¹⁷ = 20009978929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20010100001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5930751 + ... + 5934123.

It is an arithmetic number, because the mean of its divisors is an integer number (962926104).

Almost surely, 2^20010110001 is an apocalyptic number.

20010110001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20010110001 is a deficient number, since it is larger than the sum of its proper divisors (10803525327).

20010110001 is a wasteful number, since it uses less digits than its factorization.

20010110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6281.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 20010110001 its reverse (10001101002), we get a palindrome (30011211003).

The spelling of 20010110001 in words is "twenty billion, ten million, one hundred ten thousand, one".