11212043 has 4 divisors (see below), whose sum is σ = 11258808. Its totient is φ = 11165280.

The previous prime is 11212037. The next prime is 11212051. The reversal of 11212043 is 34021211.

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 11212043 - 2¹⁶ = 11146507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11212013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23021 + ... + 23502.

It is an arithmetic number, because the mean of its divisors is an integer number (2814702).

Almost surely, 2^11212043 is an apocalyptic number.

11212043 is a deficient number, since it is larger than the sum of its proper divisors (46765).

11212043 is an equidigital number, since it uses as much as digits as its factorization.

11212043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46764.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 11212043 is about 3348.4388899904. The cubic root of 11212043 is about 223.8179523747.

Adding to 11212043 its reverse (34021211), we get a palindrome (45233254).

The spelling of 11212043 in words is "eleven million, two hundred twelve thousand, forty-three".