324020215247 has 4 divisors (see below), whose sum is σ = 324999128616. Its totient is φ = 323041301880.

The previous prime is 324020215199. The next prime is 324020215283. The reversal of 324020215247 is 742512020423.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 324020215247 - 2¹⁶ = 324020149711 is a prime.

It is a super-2 number, since 2×324020215247² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (324020214247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 489456188 + ... + 489456849.

It is an arithmetic number, because the mean of its divisors is an integer number (81249782154).

Almost surely, 2^324020215247 is an apocalyptic number.

324020215247 is a deficient number, since it is larger than the sum of its proper divisors (978913369).

324020215247 is an equidigital number, since it uses as much as digits as its factorization.

324020215247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978913368.

The product of its (nonzero) digits is 26880, while the sum is 32.

The spelling of 324020215247 in words is "three hundred twenty-four billion, twenty million, two hundred fifteen thousand, two hundred forty-seven".