11815043 has 2 divisors, whose sum is σ = 11815044. Its totient is φ = 11815042.

The previous prime is 11815033. The next prime is 11815073. The reversal of 11815043 is 34051811.

11815043 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11815043 - 2¹² = 11810947 is a prime.

It is not a weakly prime, because it can be changed into another prime (11815033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5907521 + 5907522.

It is an arithmetic number, because the mean of its divisors is an integer number (5907522).

Almost surely, 2^11815043 is an apocalyptic number.

11815043 is a deficient number, since it is larger than the sum of its proper divisors (1).

11815043 is an equidigital number, since it uses as much as digits as its factorization.

11815043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 11815043 is about 3437.3017033714. The cubic root of 11815043 is about 227.7605146720.

Adding to 11815043 its reverse (34051811), we get a palindrome (45866854).

The spelling of 11815043 in words is "eleven million, eight hundred fifteen thousand, forty-three".