20323110110111 has 32 divisors (see below), whose sum is σ = 21099884477760. Its totient is φ = 19561715712000.

The previous prime is 20323110110033. The next prime is 20323110110243. The reversal of 20323110110111 is 11101101132302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20323110110111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20323110110111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323110112111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4837681811 + ... + 4837686011.

It is an arithmetic number, because the mean of its divisors is an integer number (659371389930).

Almost surely, 2^{20323110110111} is an apocalyptic number.

20323110110111 is a deficient number, since it is larger than the sum of its proper divisors (776774367649).

20323110110111 is a wasteful number, since it uses less digits than its factorization.

20323110110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8267.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 20323110110111 its reverse (11101101132302), we get a palindrome (31424211242413).

The spelling of 20323110110111 in words is "twenty trillion, three hundred twenty-three billion, one hundred ten million, one hundred ten thousand, one hundred eleven".