321564126432041 has 8 divisors (see below), whose sum is σ = 332665152059520. Its totient is φ = 310463941302928.

The previous prime is 321564126431971. The next prime is 321564126432083. The reversal of 321564126432041 is 140234621465123.

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-321564126432041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321564126431983 and 321564126432001.

It is not an unprimeable number, because it can be changed into a prime (321564126402041) 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, 209346161 + ... + 210876606.

It is an arithmetic number, because the mean of its divisors is an integer number (41583144007440).

Almost surely, 2^{321564126432041} is an apocalyptic number.

It is an amenable number.

321564126432041 is a deficient number, since it is larger than the sum of its proper divisors (11101025627479).

321564126432041 is a wasteful number, since it uses less digits than its factorization.

321564126432041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420249183.

The product of its (nonzero) digits is 829440, while the sum is 44.

Adding to 321564126432041 its reverse (140234621465123), we get a palindrome (461798747897164).

The spelling of 321564126432041 in words is "three hundred twenty-one trillion, five hundred sixty-four billion, one hundred twenty-six million, four hundred thirty-two thousand, forty-one".