313311421 has 8 divisors (see below), whose sum is σ = 316463840. Its totient is φ = 310172112.

The previous prime is 313311419. The next prime is 313311437. The reversal of 313311421 is 124113313.

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 313311421 - 2¹ = 313311419 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 (313311491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48826 + ... + 54868.

It is an arithmetic number, because the mean of its divisors is an integer number (39557980).

Almost surely, 2^313311421 is an apocalyptic number.

It is an amenable number.

313311421 is a deficient number, since it is larger than the sum of its proper divisors (3152419).

313311421 is a wasteful number, since it uses less digits than its factorization.

313311421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6555.

The product of its digits is 216, while the sum is 19.

The square root of 313311421 is about 17700.6051026512. The cubic root of 313311421 is about 679.1912393148.

Adding to 313311421 its reverse (124113313), we get a palindrome (437424734).

The spelling of 313311421 in words is "three hundred thirteen million, three hundred eleven thousand, four hundred twenty-one".