313312454421 has 32 divisors (see below), whose sum is σ = 448135269120. Its totient is φ = 194226278400.

The previous prime is 313312454417. The next prime is 313312454437. The reversal of 313312454421 is 124454213313.

It is not a de Polignac number, because 313312454421 - 2² = 313312454417 is a prime.

It is a super-2 number, since 2×313312454421² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313312454471) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 597885 + ... + 992013.

It is an arithmetic number, because the mean of its divisors is an integer number (14004227160).

Almost surely, 2^313312454421 is an apocalyptic number.

It is an amenable number.

313312454421 is a deficient number, since it is larger than the sum of its proper divisors (134822814699).

313312454421 is a wasteful number, since it uses less digits than its factorization.

313312454421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394477.

The product of its digits is 34560, while the sum is 33.

Adding to 313312454421 its reverse (124454213313), we get a palindrome (437766667734).

The spelling of 313312454421 in words is "three hundred thirteen billion, three hundred twelve million, four hundred fifty-four thousand, four hundred twenty-one".