323220101 has 4 divisors (see below), whose sum is σ = 323275212. Its totient is φ = 323164992.

The previous prime is 323220091. The next prime is 323220103. The reversal of 323220101 is 101022323.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 58507201 + 264712900 = 7649^2 + 16270^2 .

It is a cyclic number.

It is not a de Polignac number, because 323220101 - 2¹⁰ = 323219077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323220103) 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, 17546 + ... + 30891.

It is an arithmetic number, because the mean of its divisors is an integer number (80818803).

Almost surely, 2^323220101 is an apocalyptic number.

It is an amenable number.

323220101 is a deficient number, since it is larger than the sum of its proper divisors (55111).

323220101 is an equidigital number, since it uses as much as digits as its factorization.

323220101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55110.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 323220101 is about 17978.3230864283. The cubic root of 323220101 is about 686.2770154250.

Adding to 323220101 its reverse (101022323), we get a palindrome (424242424).

The spelling of 323220101 in words is "three hundred twenty-three million, two hundred twenty thousand, one hundred one".