313000440421 has 8 divisors (see below), whose sum is σ = 336845219544. Its totient is φ = 289759326720.

The previous prime is 313000440413. The next prime is 313000440443. The reversal of 313000440421 is 124044000313.

It can be written as a sum of positive squares in 4 ways, for example, as 53033023521 + 259967416900 = 230289^2 + 509870^2 .

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 313000440421 - 2³ = 313000440413 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313000440392 and 313000440401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313000740421) 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, 150915280 + ... + 150917353.

It is an arithmetic number, because the mean of its divisors is an integer number (42105652443).

Almost surely, 2^313000440421 is an apocalyptic number.

It is an amenable number.

313000440421 is a deficient number, since it is larger than the sum of its proper divisors (23844779123).

313000440421 is a wasteful number, since it uses less digits than its factorization.

313000440421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301832711.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 313000440421 its reverse (124044000313), we get a palindrome (437044440734).

The spelling of 313000440421 in words is "three hundred thirteen billion, four hundred forty thousand, four hundred twenty-one".