4123534321 has 4 divisors (see below), whose sum is σ = 4219430512. Its totient is φ = 4027638132.

The previous prime is 4123534279. The next prime is 4123534339. The reversal of 4123534321 is 1234353214.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1234353214 = 2 ⋅617176607.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4123534321 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4123534321.

It is not an unprimeable number, because it can be changed into a prime (4123534351) 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, 47948031 + ... + 47948116.

It is an arithmetic number, because the mean of its divisors is an integer number (1054857628).

Almost surely, 2^4123534321 is an apocalyptic number.

It is an amenable number.

4123534321 is a deficient number, since it is larger than the sum of its proper divisors (95896191).

4123534321 is an equidigital number, since it uses as much as digits as its factorization.

4123534321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95896190.

The product of its digits is 8640, while the sum is 28.

The square root of 4123534321 is about 64214.7515840403. The cubic root of 4123534321 is about 1603.5771943868.

Adding to 4123534321 its reverse (1234353214), we get a palindrome (5357887535).

The spelling of 4123534321 in words is "four billion, one hundred twenty-three million, five hundred thirty-four thousand, three hundred twenty-one".