2131404143 has 4 divisors (see below), whose sum is σ = 2325168168. Its totient is φ = 1937640120.

The previous prime is 2131404139. The next prime is 2131404157. The reversal of 2131404143 is 3414041312.

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 2131404143 - 2² = 2131404139 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 (2131404193) 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 3 ways as a sum of consecutive naturals, for example, 96881996 + ... + 96882017.

It is an arithmetic number, because the mean of its divisors is an integer number (581292042).

Almost surely, 2^2131404143 is an apocalyptic number.

2131404143 is a deficient number, since it is larger than the sum of its proper divisors (193764025).

2131404143 is a wasteful number, since it uses less digits than its factorization.

2131404143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193764024.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 2131404143 is about 46167.1327136525. The cubic root of 2131404143 is about 1286.9310181141.

Adding to 2131404143 its reverse (3414041312), we get a palindrome (5545445455).

The spelling of 2131404143 in words is "two billion, one hundred thirty-one million, four hundred four thousand, one hundred forty-three".