321120404333252 has 12 divisors (see below), whose sum is σ = 561962273268396. Its totient is φ = 160559754828000.

The previous prime is 321120404333231. The next prime is 321120404333291. The reversal of 321120404333252 is 252333404021123.

It can be written as a sum of positive squares in 2 ways, for example, as 281791752515716 + 39328651817536 = 16786654^2 + 6271256^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110216903 + ... + 113092910.

It is an arithmetic number, because the mean of its divisors is an integer number (46830189439033).

Almost surely, 2^{321120404333252} is an apocalyptic number.

It is an amenable number.

321120404333252 is a deficient number, since it is larger than the sum of its proper divisors (240841868935144).

321120404333252 is a wasteful number, since it uses less digits than its factorization.

321120404333252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223669318 (or 223669316 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 321120404333252 its reverse (252333404021123), we get a palindrome (573453808354375).

The spelling of 321120404333252 in words is "three hundred twenty-one trillion, one hundred twenty billion, four hundred four million, three hundred thirty-three thousand, two hundred fifty-two".