220323001 has 4 divisors (see below), whose sum is σ = 223611472. Its totient is φ = 217034532.

The previous prime is 220322909. The next prime is 220323007. The reversal of 220323001 is 100323022.

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.

It is a cyclic number.

It is not a de Polignac number, because 220323001 - 2⁹ = 220322489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220323007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1644135 + ... + 1644268.

It is an arithmetic number, because the mean of its divisors is an integer number (55902868).

Almost surely, 2^220323001 is an apocalyptic number.

It is an amenable number.

220323001 is a deficient number, since it is larger than the sum of its proper divisors (3288471).

220323001 is an equidigital number, since it uses as much as digits as its factorization.

220323001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288470.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 220323001 is about 14843.2813420753. The cubic root of 220323001 is about 603.9763679846.

Adding to 220323001 its reverse (100323022), we get a palindrome (320646023).

The spelling of 220323001 in words is "two hundred twenty million, three hundred twenty-three thousand, one".