313445314101520 has 40 divisors (see below), whose sum is σ = 729762776817984. Its totient is φ = 125205666022272.

The previous prime is 313445314101487. The next prime is 313445314101589. The reversal of 313445314101520 is 25101413544313.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 313445314101520.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2694623014 + ... + 2694739333.

Almost surely, 2^{313445314101520} is an apocalyptic number.

It is an amenable number.

313445314101520 is an abundant number, since it is smaller than the sum of its proper divisors (416317462716464).

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

313445314101520 is a wasteful number, since it uses less digits than its factorization.

313445314101520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5389363087 (or 5389363081 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 313445314101520 its reverse (25101413544313), we get a palindrome (338546727645833).

The spelling of 313445314101520 in words is "three hundred thirteen trillion, four hundred forty-five billion, three hundred fourteen million, one hundred one thousand, five hundred twenty".