20201001110001 has 48 divisors (see below), whose sum is σ = 31458053862144. Its totient is φ = 12458588579712.

The previous prime is 20201001109981. The next prime is 20201001110021. The reversal of 20201001110001 is 10001110010202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20201001109981) and next prime (20201001110021).

It is not a de Polignac number, because 20201001110001 - 2⁵ = 20201001109969 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (20201001110021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6617806 + ... + 9175911.

It is an arithmetic number, because the mean of its divisors is an integer number (655376122128).

Almost surely, 2^{20201001110001} is an apocalyptic number.

It is an amenable number.

20201001110001 is a deficient number, since it is larger than the sum of its proper divisors (11257052752143).

20201001110001 is a wasteful number, since it uses less digits than its factorization.

20201001110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15793950 (or 15793947 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20201001110001 its reverse (10001110010202), we get a palindrome (30202111120203).

The spelling of 20201001110001 in words is "twenty trillion, two hundred one billion, one million, one hundred ten thousand, one".