5243021111 has 4 divisors (see below), whose sum is σ = 5314843392. Its totient is φ = 5171198832.

The previous prime is 5243021093. The next prime is 5243021117. The reversal of 5243021111 is 1111203425.

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 5243021111 - 2¹⁰ = 5243020087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5243021117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35911031 + ... + 35911176.

It is an arithmetic number, because the mean of its divisors is an integer number (1328710848).

Almost surely, 2^5243021111 is an apocalyptic number.

5243021111 is a deficient number, since it is larger than the sum of its proper divisors (71822281).

5243021111 is an equidigital number, since it uses as much as digits as its factorization.

5243021111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71822280.

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 5243021111 is about 72408.7088063307. The cubic root of 5243021111 is about 1737.2428601818.

Adding to 5243021111 its reverse (1111203425), we get a palindrome (6354224536).

The spelling of 5243021111 in words is "five billion, two hundred forty-three million, twenty-one thousand, one hundred eleven".