313521013 has 8 divisors (see below), whose sum is σ = 338172128. Its totient is φ = 288946224.

The previous prime is 313521007. The next prime is 313521031. The reversal of 313521013 is 310125313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313521013 - 2¹³ = 313512821 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313521053) by changing a digit.

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, 10395 + ... + 27112.

It is an arithmetic number, because the mean of its divisors is an integer number (42271516).

Almost surely, 2^313521013 is an apocalyptic number.

It is an amenable number.

313521013 is a deficient number, since it is larger than the sum of its proper divisors (24651115).

313521013 is a wasteful number, since it uses less digits than its factorization.

313521013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38163.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 313521013 is about 17706.5245884109. The cubic root of 313521013 is about 679.3426555627.

Adding to 313521013 its reverse (310125313), we get a palindrome (623646326).

The spelling of 313521013 in words is "three hundred thirteen million, five hundred twenty-one thousand, thirteen".