320218413613 has 4 divisors (see below), whose sum is σ = 365963901280. Its totient is φ = 274472925948.

The previous prime is 320218413553. The next prime is 320218413617. The reversal of 320218413613 is 316314812023.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 320218413613 - 2¹³ = 320218405421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320218413617) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 22872743823 + ... + 22872743836.

It is an arithmetic number, because the mean of its divisors is an integer number (91490975320).

Almost surely, 2^320218413613 is an apocalyptic number.

It is an amenable number.

320218413613 is a deficient number, since it is larger than the sum of its proper divisors (45745487667).

320218413613 is an equidigital number, since it uses as much as digits as its factorization.

320218413613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45745487666.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 320218413613 in words is "three hundred twenty billion, two hundred eighteen million, four hundred thirteen thousand, six hundred thirteen".