20111001101101 has 32 divisors (see below), whose sum is σ = 20730242624000. Its totient is φ = 19503374400000.

The previous prime is 20111001101099. The next prime is 20111001101131. The reversal of 20111001101101 is 10110110011102.

It is a cyclic number.

It is not a de Polignac number, because 20111001101101 - 2¹ = 20111001101099 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 (20111001101131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1152550225 + ... + 1152567673.

It is an arithmetic number, because the mean of its divisors is an integer number (647820082000).

Almost surely, 2^{20111001101101} is an apocalyptic number.

It is an amenable number.

20111001101101 is a deficient number, since it is larger than the sum of its proper divisors (619241522899).

20111001101101 is a wasteful number, since it uses less digits than its factorization.

20111001101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18581.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 20111001101101 its reverse (10110110011102), we get a palindrome (30221111112203).

The spelling of 20111001101101 in words is "twenty trillion, one hundred eleven billion, one million, one hundred one thousand, one hundred one".