4320021001 has 4 divisors (see below), whose sum is σ = 4342639104. Its totient is φ = 4297402900.

The previous prime is 4320020993. The next prime is 4320021029. The reversal of 4320021001 is 1001200234.

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 4320021001 - 2³ = 4320020993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4320021031) 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, 11308765 + ... + 11309146.

It is an arithmetic number, because the mean of its divisors is an integer number (1085659776).

Almost surely, 2^4320021001 is an apocalyptic number.

It is an amenable number.

4320021001 is a deficient number, since it is larger than the sum of its proper divisors (22618103).

4320021001 is a wasteful number, since it uses less digits than its factorization.

4320021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22618102.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 4320021001 is about 65726.8666604456. The cubic root of 4320021001 is about 1628.6532090955.

Adding to 4320021001 its reverse (1001200234), we get a palindrome (5321221235).

The spelling of 4320021001 in words is "four billion, three hundred twenty million, twenty-one thousand, one".