321204231113 has 16 divisors (see below), whose sum is σ = 327729840912. Its totient is φ = 314720640000.

The previous prime is 321204231107. The next prime is 321204231167. The reversal of 321204231113 is 311132402123.

It can be written as a sum of positive squares in 8 ways, for example, as 217502842384 + 103701388729 = 466372^2 + 322027^2 .

It is a cyclic number.

It is not a de Polignac number, because 321204231113 - 2¹² = 321204227017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321204231193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34381823 + ... + 34391163.

It is an arithmetic number, because the mean of its divisors is an integer number (20483115057).

Almost surely, 2^321204231113 is an apocalyptic number.

It is an amenable number.

321204231113 is a deficient number, since it is larger than the sum of its proper divisors (6525609799).

321204231113 is a wasteful number, since it uses less digits than its factorization.

321204231113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11516.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 321204231113 its reverse (311132402123), we get a palindrome (632336633236).

The spelling of 321204231113 in words is "three hundred twenty-one billion, two hundred four million, two hundred thirty-one thousand, one hundred thirteen".