4431213043 has 4 divisors (see below), whose sum is σ = 4447210480. Its totient is φ = 4415215608.

The previous prime is 4431213023. The next prime is 4431213071. The reversal of 4431213043 is 3403121344.

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 4431213043 - 2⁹ = 4431212531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4431212999 and 4431213017.

It is not an unprimeable number, because it can be changed into a prime (4431213023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7998303 + ... + 7998856.

It is an arithmetic number, because the mean of its divisors is an integer number (1111802620).

Almost surely, 2^4431213043 is an apocalyptic number.

4431213043 is a deficient number, since it is larger than the sum of its proper divisors (15997437).

4431213043 is a wasteful number, since it uses less digits than its factorization.

4431213043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15997436.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 4431213043 is about 66567.3571880392. The cubic root of 4431213043 is about 1642.5081890047.

Adding to 4431213043 its reverse (3403121344), we get a palindrome (7834334387).

The spelling of 4431213043 in words is "four billion, four hundred thirty-one million, two hundred thirteen thousand, forty-three".