4124312321 has 4 divisors (see below), whose sum is σ = 4303630272. Its totient is φ = 3944994372.

The previous prime is 4124312299. The next prime is 4124312347. The reversal of 4124312321 is 1232134214.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4124312321 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 179317927 = 4124312321 / (4 + 1 + 2 + 4 + 3 + 1 + 2 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4124312021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89658941 + ... + 89658986.

It is an arithmetic number, because the mean of its divisors is an integer number (1075907568).

Almost surely, 2^4124312321 is an apocalyptic number.

It is an amenable number.

4124312321 is a deficient number, since it is larger than the sum of its proper divisors (179317951).

4124312321 is a wasteful number, since it uses less digits than its factorization.

4124312321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179317950.

The product of its digits is 1152, while the sum is 23.

The square root of 4124312321 is about 64220.8090964292. The cubic root of 4124312321 is about 1603.6780386712.

Adding to 4124312321 its reverse (1232134214), we get a palindrome (5356446535).

The spelling of 4124312321 in words is "four billion, one hundred twenty-four million, three hundred twelve thousand, three hundred twenty-one".