2143432120 has 16 divisors (see below), whose sum is σ = 4822722360. Its totient is φ = 857372832.

The previous prime is 2143432111. The next prime is 2143432127. The reversal of 2143432120 is 212343412.

It is a junction number, because it is equal to n+sod(n) for n = 2143432091 and 2143432100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143432127) 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, 26792862 + ... + 26792941.

Almost surely, 2^2143432120 is an apocalyptic number.

2143432120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2143432120 is an abundant number, since it is smaller than the sum of its proper divisors (2679290240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2143432120 is a wasteful number, since it uses less digits than its factorization.

2143432120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53585814 (or 53585810 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2143432120 is about 46297.2150350321. The cubic root of 2143432120 is about 1289.3472891325.

Adding to 2143432120 its reverse (212343412), we get a palindrome (2355775532).

The spelling of 2143432120 in words is "two billion, one hundred forty-three million, four hundred thirty-two thousand, one hundred twenty".