321204400131413 has 4 divisors (see below), whose sum is σ = 321204446589708. Its totient is φ = 321204353673120.

The previous prime is 321204400131397. The next prime is 321204400131449. The reversal of 321204400131413 is 314131004402123.

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

It can be written as a sum of positive squares in 2 ways, for example, as 91107750421444 + 230096649709969 = 9545038^2 + 15168937^2 .

It is a cyclic number.

It is not a de Polignac number, because 321204400131413 - 2⁴ = 321204400131397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321204400131613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10552406 + ... + 27454727.

It is an arithmetic number, because the mean of its divisors is an integer number (80301111647427).

Almost surely, 2^{321204400131413} is an apocalyptic number.

It is an amenable number.

321204400131413 is a deficient number, since it is larger than the sum of its proper divisors (46458295).

321204400131413 is an equidigital number, since it uses as much as digits as its factorization.

321204400131413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46458294.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 321204400131413 its reverse (314131004402123), we get a palindrome (635335404533536).

The spelling of 321204400131413 in words is "three hundred twenty-one trillion, two hundred four billion, four hundred million, one hundred thirty-one thousand, four hundred thirteen".