2130100043 has 4 divisors (see below), whose sum is σ = 2130568608. Its totient is φ = 2129631480.

The previous prime is 2130100033. The next prime is 2130100057. The reversal of 2130100043 is 3400010312.

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 2130100043 - 2²⁸ = 1861664587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2130100033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227396 + ... + 236577.

It is an arithmetic number, because the mean of its divisors is an integer number (532642152).

Almost surely, 2^2130100043 is an apocalyptic number.

2130100043 is a deficient number, since it is larger than the sum of its proper divisors (468565).

2130100043 is an equidigital number, since it uses as much as digits as its factorization.

2130100043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468564.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2130100043 is about 46153.0068684587. The cubic root of 2130100043 is about 1286.6684949085.

Adding to 2130100043 its reverse (3400010312), we get a palindrome (5530110355).

The spelling of 2130100043 in words is "two billion, one hundred thirty million, one hundred thousand, forty-three".