313321413242440 has 32 divisors (see below), whose sum is σ = 722167647599160. Its totient is φ = 122271771020800.

The previous prime is 313321413242437. The next prime is 313321413242441. The reversal of 313321413242440 is 44242314123313.

It can be written as a sum of positive squares in 4 ways, for example, as 190943259241284 + 122378154001156 = 13818222^2 + 11062466^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 313321413242440.

It is not an unprimeable number, because it can be changed into a prime (313321413242441) 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, 95524819471 + ... + 95524822750.

Almost surely, 2^{313321413242440} is an apocalyptic number.

It is an amenable number.

313321413242440 is an abundant number, since it is smaller than the sum of its proper divisors (408846234356720).

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

313321413242440 is a wasteful number, since it uses less digits than its factorization.

313321413242440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191049642273 (or 191049642269 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 37.

Adding to 313321413242440 its reverse (44242314123313), we get a palindrome (357563727365753).

The spelling of 313321413242440 in words is "three hundred thirteen trillion, three hundred twenty-one billion, four hundred thirteen million, two hundred forty-two thousand, four hundred forty".