20000231102111 has 4 divisors (see below), whose sum is σ = 21538710417672. Its totient is φ = 18461751786552.

The previous prime is 20000231102083. The next prime is 20000231102119. The reversal of 20000231102111 is 11120113200002.

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 20000231102111 - 2¹⁰ = 20000231101087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20000231102119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 769239657761 + ... + 769239657786.

It is an arithmetic number, because the mean of its divisors is an integer number (5384677604418).

Almost surely, 2^{20000231102111} is an apocalyptic number.

20000231102111 is a deficient number, since it is larger than the sum of its proper divisors (1538479315561).

20000231102111 is a wasteful number, since it uses less digits than its factorization.

20000231102111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1538479315560.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 20000231102111 its reverse (11120113200002), we get a palindrome (31120344302113).

The spelling of 20000231102111 in words is "twenty trillion, two hundred thirty-one million, one hundred two thousand, one hundred eleven".