313311334330421 has 4 divisors (see below), whose sum is σ = 358070096377632. Its totient is φ = 268552572283212.

The previous prime is 313311334330409. The next prime is 313311334330429. The reversal of 313311334330421 is 124033433113313.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 313311334330421 - 2³⁴ = 313294154461237 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 (313311334330429) 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, 22379381023595 + ... + 22379381023608.

It is an arithmetic number, because the mean of its divisors is an integer number (89517524094408).

Almost surely, 2^{313311334330421} is an apocalyptic number.

It is an amenable number.

313311334330421 is a deficient number, since it is larger than the sum of its proper divisors (44758762047211).

313311334330421 is an equidigital number, since it uses as much as digits as its factorization.

313311334330421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44758762047210.

The product of its (nonzero) digits is 69984, while the sum is 35.

Adding to 313311334330421 its reverse (124033433113313), we get a palindrome (437344767443734).

The spelling of 313311334330421 in words is "three hundred thirteen trillion, three hundred eleven billion, three hundred thirty-four million, three hundred thirty thousand, four hundred twenty-one".