2143142231 has 16 divisors (see below), whose sum is σ = 2350216704. Its totient is φ = 1948139424.

The previous prime is 2143142167. The next prime is 2143142327. The reversal of 2143142231 is 1322413412.

It is not a de Polignac number, because 2143142231 - 2⁶ = 2143142167 is a prime.

It is a super-2 number, since 2×2143142231² = 9186117244591314722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2143142197 and 2143142206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143102231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7310 + ... + 65876.

It is an arithmetic number, because the mean of its divisors is an integer number (146888544).

Almost surely, 2^2143142231 is an apocalyptic number.

2143142231 is a deficient number, since it is larger than the sum of its proper divisors (207074473).

2143142231 is a wasteful number, since it uses less digits than its factorization.

2143142231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58670.

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

The square root of 2143142231 is about 46294.0841900993. The cubic root of 2143142231 is about 1289.2891604823.

Adding to 2143142231 its reverse (1322413412), we get a palindrome (3465555643).

The spelling of 2143142231 in words is "two billion, one hundred forty-three million, one hundred forty-two thousand, two hundred thirty-one".