321012322 has 4 divisors (see below), whose sum is σ = 481518486. Its totient is φ = 160506160.

The previous prime is 321012287. The next prime is 321012337. The reversal of 321012322 is 223210123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 223210123 = 8059 ⋅27697.

It can be written as a sum of positive squares in only one way, i.e., 235653201 + 85359121 = 15351^2 + 9239^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321012296 and 321012305.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80253079 + ... + 80253082.

Almost surely, 2^321012322 is an apocalyptic number.

321012322 is a deficient number, since it is larger than the sum of its proper divisors (160506164).

321012322 is a wasteful number, since it uses less digits than its factorization.

321012322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160506163.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 321012322 is about 17916.8167373560. The cubic root of 321012322 is about 684.7108887039.

Adding to 321012322 its reverse (223210123), we get a palindrome (544222445).

The spelling of 321012322 in words is "three hundred twenty-one million, twelve thousand, three hundred twenty-two".