20000011011001 has 16 divisors (see below), whose sum is σ = 23092213947264. Its totient is φ = 16967474463744.

The previous prime is 20000011010989. The next prime is 20000011011011. The reversal of 20000011011001 is 10011011000002.

It is not a de Polignac number, because 20000011011001 - 2⁹ = 20000011010489 is a prime.

It is a super-2 number, since 2×20000011011001² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (7).

It is not an unprimeable number, because it can be changed into a prime (20000011011011) 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, 37307095 + ... + 37839388.

It is an arithmetic number, because the mean of its divisors is an integer number (1443263371704).

Almost surely, 2^{20000011011001} is an apocalyptic number.

It is an amenable number.

20000011011001 is a deficient number, since it is larger than the sum of its proper divisors (3092202936263).

20000011011001 is a wasteful number, since it uses less digits than its factorization.

20000011011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75146880.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 20000011011001 its reverse (10011011000002), we get a palindrome (30011022011003).

The spelling of 20000011011001 in words is "twenty trillion, eleven million, eleven thousand, one".