313011212 has 6 divisors (see below), whose sum is σ = 547769628. Its totient is φ = 156505604.

The previous prime is 313011199. The next prime is 313011217. The reversal of 313011212 is 212110313.

It is not an unprimeable number, because it can be changed into a prime (313011217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39126398 + ... + 39126405.

It is an arithmetic number, because the mean of its divisors is an integer number (91294938).

Almost surely, 2^313011212 is an apocalyptic number.

It is an amenable number.

313011212 is a deficient number, since it is larger than the sum of its proper divisors (234758416).

313011212 is a wasteful number, since it uses less digits than its factorization.

313011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78252807 (or 78252805 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 313011212 is about 17692.1228799712. The cubic root of 313011212 is about 678.9742406484.

Adding to 313011212 its reverse (212110313), we get a palindrome (525121525).

The spelling of 313011212 in words is "three hundred thirteen million, eleven thousand, two hundred twelve".