20100010102111 has 4 divisors (see below), whose sum is σ = 20299020103224. Its totient is φ = 19901000101000.

The previous prime is 20100010102097. The next prime is 20100010102163. The reversal of 20100010102111 is 11120101000102.

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

It is a cyclic number.

It is not a de Polignac number, because 20100010102111 - 2⁵ = 20100010102079 is a prime.

It is a super-2 number, since 2×20100010102111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100010142111) 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, 99505000405 + ... + 99505000606.

It is an arithmetic number, because the mean of its divisors is an integer number (5074755025806).

Almost surely, 2^{20100010102111} is an apocalyptic number.

20100010102111 is a deficient number, since it is larger than the sum of its proper divisors (199010001113).

20100010102111 is a wasteful number, since it uses less digits than its factorization.

20100010102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199010001112.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20100010102111 its reverse (11120101000102), we get a palindrome (31220111102213).

The spelling of 20100010102111 in words is "twenty trillion, one hundred billion, ten million, one hundred two thousand, one hundred eleven".