313113212 has 6 divisors (see below), whose sum is σ = 547948128. Its totient is φ = 156556604.

The previous prime is 313113211. The next prime is 313113221. The reversal of 313113212 is 212311313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313113211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39139148 + ... + 39139155.

It is an arithmetic number, because the mean of its divisors is an integer number (91324688).

Almost surely, 2^313113212 is an apocalyptic number.

It is an amenable number.

313113212 is a deficient number, since it is larger than the sum of its proper divisors (234834916).

313113212 is a wasteful number, since it uses less digits than its factorization.

313113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78278307 (or 78278305 counting only the distinct ones).

The product of its digits is 108, while the sum is 17.

The square root of 313113212 is about 17695.0052839777. The cubic root of 313113212 is about 679.0479843873.

Adding to 313113212 its reverse (212311313), we get a palindrome (525424525).

The spelling of 313113212 in words is "three hundred thirteen million, one hundred thirteen thousand, two hundred twelve".