2131110320111 has 4 divisors (see below), whose sum is σ = 2131127260224. Its totient is φ = 2131093380000.

The previous prime is 2131110319991. The next prime is 2131110320123. The reversal of 2131110320111 is 1110230111312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131110320111 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 2131110320111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131110320191) 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, 8279930 + ... + 8533431.

It is an arithmetic number, because the mean of its divisors is an integer number (532781815056).

Almost surely, 2^{2131110320111} is an apocalyptic number.

2131110320111 is a deficient number, since it is larger than the sum of its proper divisors (16940113).

2131110320111 is a wasteful number, since it uses less digits than its factorization.

2131110320111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16940112.

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

Adding to 2131110320111 its reverse (1110230111312), we get a palindrome (3241340431423).

The spelling of 2131110320111 in words is "two trillion, one hundred thirty-one billion, one hundred ten million, three hundred twenty thousand, one hundred eleven".