2104242143 has 4 divisors (see below), whose sum is σ = 2117151768. Its totient is φ = 2091332520.

The previous prime is 2104242121. The next prime is 2104242157. The reversal of 2104242143 is 3412424012.

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 2104242143 - 2⁶ = 2104242079 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 (2104242113) 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, 6454568 + ... + 6454893.

It is an arithmetic number, because the mean of its divisors is an integer number (529287942).

Almost surely, 2^2104242143 is an apocalyptic number.

2104242143 is a deficient number, since it is larger than the sum of its proper divisors (12909625).

2104242143 is a wasteful number, since it uses less digits than its factorization.

2104242143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12909624.

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

The square root of 2104242143 is about 45872.0191729119. The cubic root of 2104242143 is about 1281.4408707178.

Adding to 2104242143 its reverse (3412424012), we get a palindrome (5516666155).

The spelling of 2104242143 in words is "two billion, one hundred four million, two hundred forty-two thousand, one hundred forty-three".