5221311143 has 4 divisors (see below), whose sum is σ = 5223664248. Its totient is φ = 5218958040.

The previous prime is 5221311127. The next prime is 5221311149. The reversal of 5221311143 is 3411131225.

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 5221311143 - 2⁴ = 5221311127 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 (5221311149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173221 + ... + 1177662.

It is an arithmetic number, because the mean of its divisors is an integer number (1305916062).

Almost surely, 2^5221311143 is an apocalyptic number.

5221311143 is a deficient number, since it is larger than the sum of its proper divisors (2353105).

5221311143 is a wasteful number, since it uses less digits than its factorization.

5221311143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353104.

The product of its digits is 720, while the sum is 23.

The square root of 5221311143 is about 72258.6406113483. The cubic root of 5221311143 is about 1734.8417214226.

Adding to 5221311143 its reverse (3411131225), we get a palindrome (8632442368).

The spelling of 5221311143 in words is "five billion, two hundred twenty-one million, three hundred eleven thousand, one hundred forty-three".