4423021521243 has 8 divisors (see below), whose sum is σ = 6351005261328. Its totient is φ = 2721859397664.

The previous prime is 4423021521179. The next prime is 4423021521257. The reversal of 4423021521243 is 3421251203244.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4423021521243 - 2⁶ = 4423021521179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4423021521263) 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 7 ways as a sum of consecutive naturals, for example, 56705404080 + ... + 56705404157.

It is an arithmetic number, because the mean of its divisors is an integer number (793875657666).

Almost surely, 2^{4423021521243} is an apocalyptic number.

4423021521243 is a deficient number, since it is larger than the sum of its proper divisors (1927983740085).

4423021521243 is a wasteful number, since it uses less digits than its factorization.

4423021521243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113410808253.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 4423021521243 its reverse (3421251203244), we get a palindrome (7844272724487).

The spelling of 4423021521243 in words is "four trillion, four hundred twenty-three billion, twenty-one million, five hundred twenty-one thousand, two hundred forty-three".