321504011325243 has 72 divisors (see below), whose sum is σ = 493066523811888. Its totient is φ = 209548786764096.

The previous prime is 321504011325239. The next prime is 321504011325257. The reversal of 321504011325243 is 342523110405123.

321504011325243 is a `hidden beast` number, since 3 + 2 + 1 + 5 + 0 + 401 + 1 + 3 + 2 + 5 + 243 = 666.

It is not a de Polignac number, because 321504011325243 - 2² = 321504011325239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321504011325198 and 321504011325207.

It is not an unprimeable number, because it can be changed into a prime (321504011325293) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 96774921 + ... + 100041957.

It is an arithmetic number, because the mean of its divisors is an integer number (6848146164054).

Almost surely, 2^{321504011325243} is an apocalyptic number.

321504011325243 is a deficient number, since it is larger than the sum of its proper divisors (171562512486645).

321504011325243 is an frugal number, since it uses more digits than its factorization.

321504011325243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3267397 (or 3267376 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The spelling of 321504011325243 in words is "three hundred twenty-one trillion, five hundred four billion, eleven million, three hundred twenty-five thousand, two hundred forty-three".