2143142430 has 128 divisors (see below), whose sum is σ = 6361044480. Its totient is φ = 454325760.

The previous prime is 2143142423. The next prime is 2143142471. The reversal of 2143142430 is 342413412.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2143142430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 68364 + ... + 94656.

It is an arithmetic number, because the mean of its divisors is an integer number (49695660).

Almost surely, 2^2143142430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143142430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3180522240).

2143142430 is an abundant number, since it is smaller than the sum of its proper divisors (4217902050).

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

2143142430 is a wasteful number, since it uses less digits than its factorization.

2143142430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26346.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 2143142430 is about 46294.0863394019. The cubic root of 2143142430 is about 1289.2892003877.

Adding to 2143142430 its reverse (342413412), we get a palindrome (2485555842).

The spelling of 2143142430 in words is "two billion, one hundred forty-three million, one hundred forty-two thousand, four hundred thirty".