20201001011101 has 12 divisors (see below), whose sum is σ = 21326576691420. Its totient is φ = 19131382740800.

The previous prime is 20201001011083. The next prime is 20201001011123. The reversal of 20201001011101 is 10111010010202.

It can be written as a sum of positive squares in 2 ways, for example, as 19013968971001 + 1187032040100 = 4360501^2 + 1089510^2 .

It is not a de Polignac number, because 20201001011101 - 2¹⁷ = 20201000880029 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 (20201001011171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 188991856 + ... + 189098713.

It is an arithmetic number, because the mean of its divisors is an integer number (1777214724285).

Almost surely, 2^{20201001011101} is an apocalyptic number.

It is an amenable number.

20201001011101 is a deficient number, since it is larger than the sum of its proper divisors (1125575680319).

20201001011101 is a wasteful number, since it uses less digits than its factorization.

20201001011101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378090716 (or 378090693 counting only the distinct ones).

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

Adding to 20201001011101 its reverse (10111010010202), we get a palindrome (30312011021303).

The spelling of 20201001011101 in words is "twenty trillion, two hundred one billion, one million, eleven thousand, one hundred one".