313012121212 has 12 divisors (see below), whose sum is σ = 626024242480. Its totient is φ = 134148051936.

The previous prime is 313012121161. The next prime is 313012121237. The reversal of 313012121212 is 212121210313.

313012121212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 313012121212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5589502137 + ... + 5589502192.

Almost surely, 2^313012121212 is an apocalyptic number.

It is an amenable number.

313012121212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

313012121212 is a wasteful number, since it uses less digits than its factorization.

313012121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11179004340 (or 11179004338 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 313012121212 its reverse (212121210313), we get a palindrome (525133331525).

The spelling of 313012121212 in words is "three hundred thirteen billion, twelve million, one hundred twenty-one thousand, two hundred twelve".