2142120143 has 4 divisors (see below), whose sum is σ = 2200015320. Its totient is φ = 2084224968.

The previous prime is 2142120131. The next prime is 2142120151. The reversal of 2142120143 is 3410212412.

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 2142120143 - 2²⁴ = 2125342927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142120943) 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, 28947533 + ... + 28947606.

It is an arithmetic number, because the mean of its divisors is an integer number (550003830).

Almost surely, 2^2142120143 is an apocalyptic number.

2142120143 is a deficient number, since it is larger than the sum of its proper divisors (57895177).

2142120143 is an equidigital number, since it uses as much as digits as its factorization.

2142120143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57895176.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2142120143 is about 46283.0437957574. The cubic root of 2142120143 is about 1289.0841691847.

Adding to 2142120143 its reverse (3410212412), we get a palindrome (5552332555).

The spelling of 2142120143 in words is "two billion, one hundred forty-two million, one hundred twenty thousand, one hundred forty-three".