20011010000111 has 4 divisors (see below), whose sum is σ = 21550318461672. Its totient is φ = 18471701538552.

The previous prime is 20011010000089. The next prime is 20011010000131. The reversal of 20011010000111 is 11100001011002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20011010000111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011010000131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769654230761 + ... + 769654230786.

It is an arithmetic number, because the mean of its divisors is an integer number (5387579615418).

Almost surely, 2^{20011010000111} is an apocalyptic number.

20011010000111 is a deficient number, since it is larger than the sum of its proper divisors (1539308461561).

20011010000111 is a wasteful number, since it uses less digits than its factorization.

20011010000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539308461560.

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 20011010000111 its reverse (11100001011002), we get a palindrome (31111011011113).

The spelling of 20011010000111 in words is "twenty trillion, eleven billion, ten million, one hundred eleven", and thus it is an aban number.