2131143112 has 64 divisors (see below), whose sum is σ = 4742922240. Its totient is φ = 878472000.

The previous prime is 2131143107. The next prime is 2131143149. The reversal of 2131143112 is 2113411312.

It is a self number, because there is not a number n which added to its sum of digits gives 2131143112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 286237 + ... + 293587.

It is an arithmetic number, because the mean of its divisors is an integer number (74108160).

Almost surely, 2^2131143112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131143112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2371461120).

2131143112 is an abundant number, since it is smaller than the sum of its proper divisors (2611779128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131143112 is a wasteful number, since it uses less digits than its factorization.

2131143112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7562 (or 7558 counting only the distinct ones).

The product of its digits is 144, while the sum is 19.

The square root of 2131143112 is about 46164.3056050884. The cubic root of 2131143112 is about 1286.8784795710.

Adding to 2131143112 its reverse (2113411312), we get a palindrome (4244554424).

The spelling of 2131143112 in words is "two billion, one hundred thirty-one million, one hundred forty-three thousand, one hundred twelve".