2131340343 has 12 divisors (see below), whose sum is σ = 3123617784. Its totient is φ = 1291721200.

The previous prime is 2131340311. The next prime is 2131340359. The reversal of 2131340343 is 3430431312.

It is not a de Polignac number, because 2131340343 - 2⁵ = 2131340311 is a prime.

It is a super-2 number, since 2×2131340343² = 9085223315398715298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131340363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2935368 + ... + 2936093.

It is an arithmetic number, because the mean of its divisors is an integer number (260301482).

Almost surely, 2^2131340343 is an apocalyptic number.

2131340343 is a deficient number, since it is larger than the sum of its proper divisors (992277441).

2131340343 is a wasteful number, since it uses less digits than its factorization.

2131340343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5871486 (or 5871475 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 2131340343 is about 46166.4417407276. The cubic root of 2131340343 is about 1286.9181772804.

Adding to 2131340343 its reverse (3430431312), we get a palindrome (5561771655).

The spelling of 2131340343 in words is "two billion, one hundred thirty-one million, three hundred forty thousand, three hundred forty-three".