321243340995 has 48 divisors (see below), whose sum is σ = 564557160960. Its totient is φ = 168954956352.

The previous prime is 321243340987. The next prime is 321243341063. The reversal of 321243340995 is 599043342123.

321243340995 is a `hidden beast` number, since 3 + 2 + 124 + 33 + 409 + 95 = 666.

It is not a de Polignac number, because 321243340995 - 2³ = 321243340987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 321243340995.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2885352 + ... + 2994618.

It is an arithmetic number, because the mean of its divisors is an integer number (11761607520).

Almost surely, 2^321243340995 is an apocalyptic number.

321243340995 is a deficient number, since it is larger than the sum of its proper divisors (243313819965).

321243340995 is a wasteful number, since it uses less digits than its factorization.

321243340995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110184 (or 110181 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The spelling of 321243340995 in words is "three hundred twenty-one billion, two hundred forty-three million, three hundred forty thousand, nine hundred ninety-five".