2113203043 has 16 divisors (see below), whose sum is σ = 2431275264. Its totient is φ = 1799209440.

The previous prime is 2113203041. The next prime is 2113203067. The reversal of 2113203043 is 3403023112.

It is not a de Polignac number, because 2113203043 - 2¹ = 2113203041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113203043.

It is not an unprimeable number, because it can be changed into a prime (2113203041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1636228 + ... + 1637518.

It is an arithmetic number, because the mean of its divisors is an integer number (151954704).

Almost surely, 2^2113203043 is an apocalyptic number.

2113203043 is a deficient number, since it is larger than the sum of its proper divisors (318072221).

2113203043 is a wasteful number, since it uses less digits than its factorization.

2113203043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2113203043 is about 45969.5882404879. The cubic root of 2113203043 is about 1283.2572969774.

Adding to 2113203043 its reverse (3403023112), we get a palindrome (5516226155).

The spelling of 2113203043 in words is "two billion, one hundred thirteen million, two hundred three thousand, forty-three".