320351213501 has 8 divisors (see below), whose sum is σ = 361524880800. Its totient is φ = 281186017840.

The previous prime is 320351213447. The next prime is 320351213519. The reversal of 320351213501 is 105312153023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 320351213501 - 2¹⁰ = 320351212477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320351215501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502117571 + ... + 502118208.

It is an arithmetic number, because the mean of its divisors is an integer number (45190610100).

Almost surely, 2^320351213501 is an apocalyptic number.

It is an amenable number.

320351213501 is a deficient number, since it is larger than the sum of its proper divisors (41173667299).

320351213501 is a wasteful number, since it uses less digits than its factorization.

320351213501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004235819.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 320351213501 its reverse (105312153023), we get a palindrome (425663366524).

The spelling of 320351213501 in words is "three hundred twenty billion, three hundred fifty-one million, two hundred thirteen thousand, five hundred one".