2113043 has 2 divisors, whose sum is σ = 2113044. Its totient is φ = 2113042.

The previous prime is 2113039. The next prime is 2113087. The reversal of 2113043 is 3403112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2113043 - 2² = 2113039 is a prime.

It is not a weakly prime, because it can be changed into another prime (2113003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056521 + 1056522.

It is an arithmetic number, because the mean of its divisors is an integer number (1056522).

2^2113043 is an apocalyptic number.

2113043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113043 is an equidigital number, since it uses as much as digits as its factorization.

2113043 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2113043 is about 1453.6309710515. The cubic root of 2113043 is about 128.3224900417.

Adding to 2113043 its reverse (3403112), we get a palindrome (5516155).

The spelling of 2113043 in words is "two million, one hundred thirteen thousand, forty-three".