2130240443 has 4 divisors (see below), whose sum is σ = 2203697040. Its totient is φ = 2056783848.

The previous prime is 2130240433. The next prime is 2130240449. The reversal of 2130240443 is 3440420312.

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 2130240443 - 2⁶ = 2130240379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130240449) 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, 36728255 + ... + 36728312.

It is an arithmetic number, because the mean of its divisors is an integer number (550924260).

Almost surely, 2^2130240443 is an apocalyptic number.

2130240443 is a deficient number, since it is larger than the sum of its proper divisors (73456597).

2130240443 is an equidigital number, since it uses as much as digits as its factorization.

2130240443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73456596.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2130240443 is about 46154.5278710551. The cubic root of 2130240443 is about 1286.6967634224.

Adding to 2130240443 its reverse (3440420312), we get a palindrome (5570660755).

The spelling of 2130240443 in words is "two billion, one hundred thirty million, two hundred forty thousand, four hundred forty-three".