313213512 has 64 divisors (see below), whose sum is σ = 797472000. Its totient is φ = 102495744.

The previous prime is 313213507. The next prime is 313213519. The reversal of 313213512 is 215312313.

It is not an unprimeable number, because it can be changed into a prime (313213519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441414 + ... + 442122.

It is an arithmetic number, because the mean of its divisors is an integer number (12460500).

Almost surely, 2^313213512 is an apocalyptic number.

It is an amenable number.

313213512 is an abundant number, since it is smaller than the sum of its proper divisors (484258488).

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

313213512 is a wasteful number, since it uses less digits than its factorization.

313213512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030 (or 1026 counting only the distinct ones).

The product of its digits is 540, while the sum is 21.

The square root of 313213512 is about 17697.8391901384. The cubic root of 313213512 is about 679.1204834484.

Adding to 313213512 its reverse (215312313), we get a palindrome (528525825).

The spelling of 313213512 in words is "three hundred thirteen million, two hundred thirteen thousand, five hundred twelve".