20001101332011 has 16 divisors (see below), whose sum is σ = 27058298738688. Its totient is φ = 13140290636000.

The previous prime is 20001101332001. The next prime is 20001101332031. The reversal of 20001101332011 is 11023310110002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20001101332011 - 2¹⁵ = 20001101299243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20001101332001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163050540 + ... + 163173161.

It is an arithmetic number, because the mean of its divisors is an integer number (1691143671168).

Almost surely, 2^{20001101332011} is an apocalyptic number.

20001101332011 is a deficient number, since it is larger than the sum of its proper divisors (7057197406677).

20001101332011 is a wasteful number, since it uses less digits than its factorization.

20001101332011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326224002.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 20001101332011 its reverse (11023310110002), we get a palindrome (31024411442013).

The spelling of 20001101332011 in words is "twenty trillion, one billion, one hundred one million, three hundred thirty-two thousand, eleven".