2143422403 has 4 divisors (see below), whose sum is σ = 2159067960. Its totient is φ = 2127776848.

The previous prime is 2143422401. The next prime is 2143422409. The reversal of 2143422403 is 3042243412.

It is a happy number.

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 2143422403 - 2¹ = 2143422401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143422401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7822573 + ... + 7822846.

It is an arithmetic number, because the mean of its divisors is an integer number (539766990).

Almost surely, 2^2143422403 is an apocalyptic number.

2143422403 is a deficient number, since it is larger than the sum of its proper divisors (15645557).

2143422403 is a wasteful number, since it uses less digits than its factorization.

2143422403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15645556.

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 2143422403 is about 46297.1100933957. The cubic root of 2143422403 is about 1289.3453407610.

Adding to 2143422403 its reverse (3042243412), we get a palindrome (5185665815).

The spelling of 2143422403 in words is "two billion, one hundred forty-three million, four hundred twenty-two thousand, four hundred three".