2143122241 has 4 divisors (see below), whose sum is σ = 2307977812. Its totient is φ = 1978266672.

The previous prime is 2143122239. The next prime is 2143122253. The reversal of 2143122241 is 1422213412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1390991616 + 752130625 = 37296^2 + 27425^2 .

It is a cyclic number.

It is not a de Polignac number, because 2143122241 - 2¹ = 2143122239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143122041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82427766 + ... + 82427791.

It is an arithmetic number, because the mean of its divisors is an integer number (576994453).

Almost surely, 2^2143122241 is an apocalyptic number.

It is an amenable number.

2143122241 is a deficient number, since it is larger than the sum of its proper divisors (164855571).

2143122241 is a wasteful number, since it uses less digits than its factorization.

2143122241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164855570.

The product of its digits is 768, while the sum is 22.

The square root of 2143122241 is about 46293.8682872797. The cubic root of 2143122241 is about 1289.2851518869.

Adding to 2143122241 its reverse (1422213412), we get a palindrome (3565335653).

The spelling of 2143122241 in words is "two billion, one hundred forty-three million, one hundred twenty-two thousand, two hundred forty-one".