320211311403 has 8 divisors (see below), whose sum is σ = 427767896016. Its totient is φ = 213064467200.

The previous prime is 320211311389. The next prime is 320211311437. The reversal of 320211311403 is 304113112023.

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 320211311403 - 2³³ = 311621376811 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 320211311403.

It is not an unprimeable number, because it can be changed into a prime (320211311473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102433278 + ... + 102436403.

It is an arithmetic number, because the mean of its divisors is an integer number (53470987002).

Almost surely, 2^320211311403 is an apocalyptic number.

320211311403 is a deficient number, since it is larger than the sum of its proper divisors (107556584613).

320211311403 is a wasteful number, since it uses less digits than its factorization.

320211311403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204870205.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 320211311403 its reverse (304113112023), we get a palindrome (624324423426).

The spelling of 320211311403 in words is "three hundred twenty billion, two hundred eleven million, three hundred eleven thousand, four hundred three".