20210011101001 has 8 divisors (see below), whose sum is σ = 20487257877320. Its totient is φ = 19932775062912.

The previous prime is 20210011100989. The next prime is 20210011101017. The reversal of 20210011101001 is 10010111001202.

It can be written as a sum of positive squares in 4 ways, for example, as 6172362611776 + 14037648489225 = 2484424^2 + 3746685^2 .

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 20210011101001 - 2⁴³ = 11413918078793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20210011101601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1142551 + ... + 6459523.

It is an arithmetic number, because the mean of its divisors is an integer number (2560907234665).

Almost surely, 2^{20210011101001} is an apocalyptic number.

It is an amenable number.

20210011101001 is a deficient number, since it is larger than the sum of its proper divisors (277246776319).

20210011101001 is an equidigital number, since it uses as much as digits as its factorization.

20210011101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5369115.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20210011101001 its reverse (10010111001202), we get a palindrome (30220122102203).

The spelling of 20210011101001 in words is "twenty trillion, two hundred ten billion, eleven million, one hundred one thousand, one".