321321332 has 6 divisors (see below), whose sum is σ = 562312338. Its totient is φ = 160660664.

The previous prime is 321321277. The next prime is 321321353. The reversal of 321321332 is 233123123.

It can be written as a sum of positive squares in only one way, i.e., 162460516 + 158860816 = 12746^2 + 12604^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40165163 + ... + 40165170.

It is an arithmetic number, because the mean of its divisors is an integer number (93718723).

Almost surely, 2^321321332 is an apocalyptic number.

It is an amenable number.

321321332 is a deficient number, since it is larger than the sum of its proper divisors (240991006).

321321332 is a wasteful number, since it uses less digits than its factorization.

321321332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80330337 (or 80330335 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 321321332 is about 17925.4381257474. The cubic root of 321321332 is about 684.9305216619.

Adding to 321321332 its reverse (233123123), we get a palindrome (554444455).

The spelling of 321321332 in words is "three hundred twenty-one million, three hundred twenty-one thousand, three hundred thirty-two".