323300001221 has 4 divisors (see below), whose sum is σ = 324641495244. Its totient is φ = 321958507200.

The previous prime is 323300001179. The next prime is 323300001223. The reversal of 323300001221 is 122100003323.

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 178557798721 + 144742202500 = 422561^2 + 380450^2 .

It is a cyclic number.

It is not a de Polignac number, because 323300001221 - 2¹⁰ = 323300000197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 323300001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323300001223) 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, 670746650 + ... + 670747131.

It is an arithmetic number, because the mean of its divisors is an integer number (81160373811).

Almost surely, 2^323300001221 is an apocalyptic number.

It is an amenable number.

323300001221 is a deficient number, since it is larger than the sum of its proper divisors (1341494023).

323300001221 is a wasteful number, since it uses less digits than its factorization.

323300001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341494022.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 323300001221 its reverse (122100003323), we get a palindrome (445400004544).

The spelling of 323300001221 in words is "three hundred twenty-three billion, three hundred million, one thousand, two hundred twenty-one".