2131320113111 has 24 divisors (see below), whose sum is σ = 2510947091520. Its totient is φ = 1803525115392.

The previous prime is 2131320113081. The next prime is 2131320113183. The reversal of 2131320113111 is 1113110231312.

It is not a de Polignac number, because 2131320113111 - 2²² = 2131315918807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131320113191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43923215 + ... + 43971711.

It is an arithmetic number, because the mean of its divisors is an integer number (104622795480).

Almost surely, 2^{2131320113111} is an apocalyptic number.

2131320113111 is a deficient number, since it is larger than the sum of its proper divisors (379626978409).

2131320113111 is a wasteful number, since it uses less digits than its factorization.

2131320113111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59943 (or 59936 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 2131320113111 its reverse (1113110231312), we get a palindrome (3244430344423).

The spelling of 2131320113111 in words is "two trillion, one hundred thirty-one billion, three hundred twenty million, one hundred thirteen thousand, one hundred eleven".