321488856341 has 4 divisors (see below), whose sum is σ = 324438295500. Its totient is φ = 318539417184.

The previous prime is 321488856307. The next prime is 321488856371. The reversal of 321488856341 is 143658884123.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 143658884123 = 67961 ⋅2113843.

It can be written as a sum of positive squares in 2 ways, for example, as 277443439441 + 44045416900 = 526729^2 + 209870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-321488856341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321488856371) 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 3 ways as a sum of consecutive naturals, for example, 1474719416 + ... + 1474719633.

It is an arithmetic number, because the mean of its divisors is an integer number (81109573875).

Almost surely, 2^321488856341 is an apocalyptic number.

It is an amenable number.

321488856341 is a deficient number, since it is larger than the sum of its proper divisors (2949439159).

321488856341 is a wasteful number, since it uses less digits than its factorization.

321488856341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2949439158.

The product of its digits is 4423680, while the sum is 53.

The spelling of 321488856341 in words is "three hundred twenty-one billion, four hundred eighty-eight million, eight hundred fifty-six thousand, three hundred forty-one".