1313422244240 has 40 divisors (see below), whose sum is σ = 3081722396280. Its totient is φ = 520548996096.

The previous prime is 1313422244219. The next prime is 1313422244243. The reversal of 1313422244240 is 424422243131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 319197880576 + 994224363664 = 564976^2 + 997108^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 1313422244197 and 1313422244206.

It is not an unprimeable number, because it can be changed into a prime (1313422244243) 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, 75302189 + ... + 75319628.

It is an arithmetic number, because the mean of its divisors is an integer number (77043059907).

Almost surely, 2^{1313422244240} is an apocalyptic number.

1313422244240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313422244240 is an abundant number, since it is smaller than the sum of its proper divisors (1768300152040).

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

1313422244240 is a wasteful number, since it uses less digits than its factorization.

1313422244240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150621939 (or 150621933 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 1313422244240 its reverse (424422243131), we get a palindrome (1737844487371).

The spelling of 1313422244240 in words is "one trillion, three hundred thirteen billion, four hundred twenty-two million, two hundred forty-four thousand, two hundred forty".