323133323331221 has 16 divisors (see below), whose sum is σ = 348084559413360. Its totient is φ = 298195644257280.

The previous prime is 323133323331197. The next prime is 323133323331233. The reversal of 323133323331221 is 122133323331323.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 6222475371121 + 316910847960100 = 2494489^2 + 17801990^2 .

It is a cyclic number.

It is not a de Polignac number, because 323133323331221 - 2⁴² = 318735276820117 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 (323133323337221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 778139981 + ... + 778555133.

It is an arithmetic number, because the mean of its divisors is an integer number (21755284963335).

Almost surely, 2^{323133323331221} is an apocalyptic number.

It is an amenable number.

323133323331221 is a deficient number, since it is larger than the sum of its proper divisors (24951236082139).

323133323331221 is a wasteful number, since it uses less digits than its factorization.

323133323331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431336.

The product of its digits is 104976, while the sum is 35.

Adding to 323133323331221 its reverse (122133323331323), we get a palindrome (445266646662544).

The spelling of 323133323331221 in words is "three hundred twenty-three trillion, one hundred thirty-three billion, three hundred twenty-three million, three hundred thirty-one thousand, two hundred twenty-one".