321404430120413 has 2 divisors, whose sum is σ = 321404430120414. Its totient is φ = 321404430120412.

The previous prime is 321404430120329. The next prime is 321404430120443. The reversal of 321404430120413 is 314021034404123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250734145460569 + 70670284659844 = 15834587^2 + 8406562^2 .

It is a cyclic number.

It is not a de Polignac number, because 321404430120413 - 2¹⁰ = 321404430119389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 321404430120413.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321404430120443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160702215060206 + 160702215060207.

It is an arithmetic number, because the mean of its divisors is an integer number (160702215060207).

Almost surely, 2^{321404430120413} is an apocalyptic number.

It is an amenable number.

321404430120413 is a deficient number, since it is larger than the sum of its proper divisors (1).

321404430120413 is an equidigital number, since it uses as much as digits as its factorization.

321404430120413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 321404430120413 its reverse (314021034404123), we get a palindrome (635425464524536).

The spelling of 321404430120413 in words is "three hundred twenty-one trillion, four hundred four billion, four hundred thirty million, one hundred twenty thousand, four hundred thirteen".