20002111000111 has 4 divisors (see below), whose sum is σ = 20283830873424. Its totient is φ = 19720391126800.

The previous prime is 20002111000103. The next prime is 20002111000133. The reversal of 20002111000111 is 11100011120002.

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 20002111000111 - 2³ = 20002111000103 is a prime.

It is a super-2 number, since 2×20002111000111² (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 (20002111070111) 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, 140859936550 + ... + 140859936691.

It is an arithmetic number, because the mean of its divisors is an integer number (5070957718356).

Almost surely, 2^{20002111000111} is an apocalyptic number.

20002111000111 is a deficient number, since it is larger than the sum of its proper divisors (281719873313).

20002111000111 is an equidigital number, since it uses as much as digits as its factorization.

20002111000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281719873312.

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

Adding to 20002111000111 its reverse (11100011120002), we get a palindrome (31102122120113).

It can be divided in two parts, 20002 and 111000111, that multiplied together give a palindrome (2220224220222).

The spelling of 20002111000111 in words is "twenty trillion, two billion, one hundred eleven million, one hundred eleven", and thus it is an aban number.