2131143122 has 4 divisors (see below), whose sum is σ = 3196714686. Its totient is φ = 1065571560.

The previous prime is 2131143107. The next prime is 2131143149. The reversal of 2131143122 is 2213411312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1676984401 + 454158721 = 40951^2 + 21311^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2131143094 and 2131143103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532785779 + ... + 532785782.

Almost surely, 2^2131143122 is an apocalyptic number.

2131143122 is a deficient number, since it is larger than the sum of its proper divisors (1065571564).

2131143122 is a wasteful number, since it uses less digits than its factorization.

2131143122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1065571563.

The product of its digits is 288, while the sum is 20.

The square root of 2131143122 is about 46164.3057133972. The cubic root of 2131143122 is about 1286.8784815838.

Adding to 2131143122 its reverse (2213411312), we get a palindrome (4344554434).

The spelling of 2131143122 in words is "two billion, one hundred thirty-one million, one hundred forty-three thousand, one hundred twenty-two".