20010000111 has 8 divisors (see below), whose sum is σ = 26916106800. Its totient is φ = 13221946752.

The previous prime is 20010000097. The next prime is 20010000133. The reversal of 20010000111 is 11100001002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20010000111 - 2⁵ = 20010000079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20010000111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010000151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29512936 + ... + 29513613.

It is an arithmetic number, because the mean of its divisors is an integer number (3364513350).

Almost surely, 2^20010000111 is an apocalyptic number.

20010000111 is a deficient number, since it is larger than the sum of its proper divisors (6906106689).

20010000111 is a wasteful number, since it uses less digits than its factorization.

20010000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59026665.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 20010000111 its reverse (11100001002), we get a palindrome (31110001113).

The spelling of 20010000111 in words is "twenty billion, ten million, one hundred eleven", and thus it is an aban number.