320135311421 has 8 divisors (see below), whose sum is σ = 321016375680. Its totient is φ = 319254439392.

The previous prime is 320135311417. The next prime is 320135311427. The reversal of 320135311421 is 124113531023.

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 320135311421 - 2² = 320135311417 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 (320135311427) 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 7 ways as a sum of consecutive naturals, for example, 3683756 + ... + 3769658.

It is an arithmetic number, because the mean of its divisors is an integer number (40127046960).

Almost surely, 2^320135311421 is an apocalyptic number.

It is an amenable number.

320135311421 is a deficient number, since it is larger than the sum of its proper divisors (881064259).

320135311421 is an equidigital number, since it uses as much as digits as its factorization.

320135311421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96115.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 320135311421 its reverse (124113531023), we get a palindrome (444248842444).

The spelling of 320135311421 in words is "three hundred twenty billion, one hundred thirty-five million, three hundred eleven thousand, four hundred twenty-one".