20000111120111 has 8 divisors (see below), whose sum is σ = 20021319461760. Its totient is φ = 19978905526272.

The previous prime is 20000111120083. The next prime is 20000111120113. The reversal of 20000111120111 is 11102111100002.

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

It is a cyclic number.

It is not a de Polignac number, because 20000111120111 - 2⁶ = 20000111120047 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20000111120092 and 20000111120101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000111120113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14045186 + ... + 15403488.

It is an arithmetic number, because the mean of its divisors is an integer number (2502664932720).

Almost surely, 2^{20000111120111} is an apocalyptic number.

20000111120111 is a deficient number, since it is larger than the sum of its proper divisors (21208341649).

20000111120111 is a wasteful number, since it uses less digits than its factorization.

20000111120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373905.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 20000111120111 its reverse (11102111100002), we get a palindrome (31102222220113).

The spelling of 20000111120111 in words is "twenty trillion, one hundred eleven million, one hundred twenty thousand, one hundred eleven".