2421402143 has 4 divisors (see below), whose sum is σ = 2421501360. Its totient is φ = 2421302928.

The previous prime is 2421402133. The next prime is 2421402167. The reversal of 2421402143 is 3412041242.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2421402143 - 2⁸ = 2421401887 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 (2421402133) 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, 15371 + ... + 71267.

It is an arithmetic number, because the mean of its divisors is an integer number (605375340).

Almost surely, 2^2421402143 is an apocalyptic number.

2421402143 is a deficient number, since it is larger than the sum of its proper divisors (99217).

2421402143 is an equidigital number, since it uses as much as digits as its factorization.

2421402143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99216.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2421402143 is about 49207.7447461271. The cubic root of 2421402143 is about 1342.8339338554.

Adding to 2421402143 its reverse (3412041242), we get a palindrome (5833443385).

The spelling of 2421402143 in words is "two billion, four hundred twenty-one million, four hundred two thousand, one hundred forty-three".