313021023303 has 4 divisors (see below), whose sum is σ = 417361364408. Its totient is φ = 208680682200.

The previous prime is 313021023299. The next prime is 313021023311. The reversal of 313021023303 is 303320120313.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 313021023303 - 2² = 313021023299 is a prime.

It is a super-2 number, since 2×313021023303² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313021023303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313021023503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52170170548 + ... + 52170170553.

It is an arithmetic number, because the mean of its divisors is an integer number (104340341102).

Almost surely, 2^313021023303 is an apocalyptic number.

313021023303 is a deficient number, since it is larger than the sum of its proper divisors (104340341105).

313021023303 is a wasteful number, since it uses less digits than its factorization.

313021023303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104340341104.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 313021023303 its reverse (303320120313), we get a palindrome (616341143616).

It can be divided in two parts, 3130210 and 23303, that added together give a palindrome (3153513).

The spelling of 313021023303 in words is "three hundred thirteen billion, twenty-one million, twenty-three thousand, three hundred three".