2143050031 has 4 divisors (see below), whose sum is σ = 2143494864. Its totient is φ = 2142605200.

The previous prime is 2143050029. The next prime is 2143050043. The reversal of 2143050031 is 1300503412.

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 2143050031 - 2¹ = 2143050029 is a prime.

It is a super-2 number, since 2×2143050031² = 9185326870738201922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2143049990 and 2143050008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143050131) 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, 215110 + ... + 224851.

It is an arithmetic number, because the mean of its divisors is an integer number (535873716).

Almost surely, 2^2143050031 is an apocalyptic number.

2143050031 is a deficient number, since it is larger than the sum of its proper divisors (444833).

2143050031 is an equidigital number, since it uses as much as digits as its factorization.

2143050031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444832.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 2143050031 is about 46293.0883718077. The cubic root of 2143050031 is about 1289.2706714053.

Adding to 2143050031 its reverse (1300503412), we get a palindrome (3443553443).

The spelling of 2143050031 in words is "two billion, one hundred forty-three million, fifty thousand, thirty-one".