313203230021 has 32 divisors (see below), whose sum is σ = 370357308288. Its totient is φ = 261629706240.

The previous prime is 313203229967. The next prime is 313203230033. The reversal of 313203230021 is 120032302313.

It is not a de Polignac number, because 313203230021 - 2³⁸ = 38325323077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313203229975 and 313203230002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313203260021) 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 31 ways as a sum of consecutive naturals, for example, 20553221 + ... + 20568453.

It is an arithmetic number, because the mean of its divisors is an integer number (11573665884).

Almost surely, 2^313203230021 is an apocalyptic number.

It is an amenable number.

313203230021 is a deficient number, since it is larger than the sum of its proper divisors (57154078267).

313203230021 is a wasteful number, since it uses less digits than its factorization.

313203230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17861.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 313203230021 its reverse (120032302313), we get a palindrome (433235532334).

The spelling of 313203230021 in words is "three hundred thirteen billion, two hundred three million, two hundred thirty thousand, twenty-one".