321303321442 has 4 divisors (see below), whose sum is σ = 481954982166. Its totient is φ = 160651660720.

The previous prime is 321303321397. The next prime is 321303321473. The reversal of 321303321442 is 244123303123.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 301478963041 + 19824358401 = 549071^2 + 140799^2 .

It is a super-2 number, since 2×321303321442² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321303321442.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80325830359 + ... + 80325830362.

Almost surely, 2^321303321442 is an apocalyptic number.

321303321442 is a deficient number, since it is larger than the sum of its proper divisors (160651660724).

321303321442 is a wasteful number, since it uses less digits than its factorization.

321303321442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160651660723.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 321303321442 its reverse (244123303123), we get a palindrome (565426624565).

The spelling of 321303321442 in words is "three hundred twenty-one billion, three hundred three million, three hundred twenty-one thousand, four hundred forty-two".