313031203423 has 4 divisors (see below), whose sum is σ = 313037485488. Its totient is φ = 313024921360.

The previous prime is 313031203411. The next prime is 313031203439. The reversal of 313031203423 is 324302130313.

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

It is a cyclic number.

It is not a de Polignac number, because 313031203423 - 2¹³ = 313031195231 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 (313031203493) 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 3 ways as a sum of consecutive naturals, for example, 3065686 + ... + 3166147.

It is an arithmetic number, because the mean of its divisors is an integer number (78259371372).

Almost surely, 2^313031203423 is an apocalyptic number.

313031203423 is a deficient number, since it is larger than the sum of its proper divisors (6282065).

313031203423 is an equidigital number, since it uses as much as digits as its factorization.

313031203423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6282064.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 313031203423 its reverse (324302130313), we get a palindrome (637333333736).

The spelling of 313031203423 in words is "three hundred thirteen billion, thirty-one million, two hundred three thousand, four hundred twenty-three".