2131131113 has 8 divisors (see below), whose sum is σ = 2177031168. Its totient is φ = 2085441904.

The previous prime is 2131131061. The next prime is 2131131131. The reversal of 2131131113 is 3111311312.

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 2131131113 - 2¹² = 2131127017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131131091 and 2131131100.

It is not an unprimeable number, because it can be changed into a prime (2131131133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32195 + ... + 72792.

It is an arithmetic number, because the mean of its divisors is an integer number (272128896).

Almost surely, 2^2131131113 is an apocalyptic number.

It is an amenable number.

2131131113 is a deficient number, since it is larger than the sum of its proper divisors (45900055).

2131131113 is a wasteful number, since it uses less digits than its factorization.

2131131113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105423.

The product of its digits is 54, while the sum is 17.

The square root of 2131131113 is about 46164.1756451905. The cubic root of 2131131113 is about 1286.8760643908.

Adding to 2131131113 its reverse (3111311312), we get a palindrome (5242442425).

The spelling of 2131131113 in words is "two billion, one hundred thirty-one million, one hundred thirty-one thousand, one hundred thirteen".