321403120440413 has 8 divisors (see below), whose sum is σ = 350621902934976. Its totient is φ = 292184390779200.

The previous prime is 321403120440317. The next prime is 321403120440461. The reversal of 321403120440413 is 314044021304123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321403120440413 is a prime.

It is a super-2 number, since 2×321403120440413² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 321403120440413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321403120440113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93845 + ... + 25353797.

It is an arithmetic number, because the mean of its divisors is an integer number (43827737866872).

Almost surely, 2^{321403120440413} is an apocalyptic number.

It is an amenable number.

321403120440413 is a deficient number, since it is larger than the sum of its proper divisors (29218782494563).

321403120440413 is a wasteful number, since it uses less digits than its factorization.

321403120440413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26416675.

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

Adding to 321403120440413 its reverse (314044021304123), we get a palindrome (635447141744536).

The spelling of 321403120440413 in words is "three hundred twenty-one trillion, four hundred three billion, one hundred twenty million, four hundred forty thousand, four hundred thirteen".