4031324421 has 4 divisors (see below), whose sum is σ = 5375099232. Its totient is φ = 2687549612.

The previous prime is 4031324383. The next prime is 4031324443. The reversal of 4031324421 is 1244231304.

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 not a de Polignac number, because 4031324421 - 2⁶ = 4031324357 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4031324391 and 4031324400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4031324021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 671887401 + ... + 671887406.

It is an arithmetic number, because the mean of its divisors is an integer number (1343774808).

Almost surely, 2^4031324421 is an apocalyptic number.

It is an amenable number.

4031324421 is a deficient number, since it is larger than the sum of its proper divisors (1343774811).

4031324421 is a wasteful number, since it uses less digits than its factorization.

4031324421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1343774810.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4031324421 is about 63492.7115580993. The cubic root of 4031324421 is about 1591.5339837657.

Adding to 4031324421 its reverse (1244231304), we get a palindrome (5275555725).

The spelling of 4031324421 in words is "four billion, thirty-one million, three hundred twenty-four thousand, four hundred twenty-one".