313221104340 has 96 divisors (see below), whose sum is σ = 886100221440. Its totient is φ = 82662967296.

The previous prime is 313221104333. The next prime is 313221104341. The reversal of 313221104340 is 43401122313.

It is a happy number.

313221104340 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 313221104340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313221104341) 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, 4555941 + ... + 4624179.

It is an arithmetic number, because the mean of its divisors is an integer number (9230210640).

Almost surely, 2^313221104340 is an apocalyptic number.

313221104340 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313221104340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (443050110720).

313221104340 is an abundant number, since it is smaller than the sum of its proper divisors (572879117100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313221104340 is a wasteful number, since it uses less digits than its factorization.

313221104340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69041 (or 69039 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 313221104340 its reverse (43401122313), we get a palindrome (356622226653).

The spelling of 313221104340 in words is "three hundred thirteen billion, two hundred twenty-one million, one hundred four thousand, three hundred forty".