313000135252240 has 80 divisors (see below), whose sum is σ = 729076602896640. Its totient is φ = 124967722659840.

The previous prime is 313000135252237. The next prime is 313000135252241. The reversal of 313000135252240 is 42252531000313.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (313000135252241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134113216 + ... + 136427104.

It is an arithmetic number, because the mean of its divisors is an integer number (9113457536208).

Almost surely, 2^{313000135252240} is an apocalyptic number.

It is an amenable number.

313000135252240 is an abundant number, since it is smaller than the sum of its proper divisors (416076467644400).

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

313000135252240 is a wasteful number, since it uses less digits than its factorization.

313000135252240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2317040 (or 2317034 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 313000135252240 its reverse (42252531000313), we get a palindrome (355252666252553).

The spelling of 313000135252240 in words is "three hundred thirteen trillion, one hundred thirty-five million, two hundred fifty-two thousand, two hundred forty".