2143231142 has 32 divisors (see below), whose sum is σ = 3569268864. Its totient is φ = 958780800.

The previous prime is 2143231127. The next prime is 2143231177. The reversal of 2143231142 is 2411323412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256592 + ... + 264812.

It is an arithmetic number, because the mean of its divisors is an integer number (111539652).

Almost surely, 2^2143231142 is an apocalyptic number.

2143231142 is a deficient number, since it is larger than the sum of its proper divisors (1426037722).

2143231142 is a wasteful number, since it uses less digits than its factorization.

2143231142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8544.

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

The square root of 2143231142 is about 46295.0444648237. The cubic root of 2143231142 is about 1289.3069895064.

Adding to 2143231142 its reverse (2411323412), we get a palindrome (4554554554).

The spelling of 2143231142 in words is "two billion, one hundred forty-three million, two hundred thirty-one thousand, one hundred forty-two".