313140352212 has 36 divisors (see below), whose sum is σ = 798811153140. Its totient is φ = 103422500352.

The previous prime is 313140352181. The next prime is 313140352219. The reversal of 313140352212 is 212253041313.

313140352212 is a `hidden beast` number, since 3 + 1 + 31 + 403 + 5 + 221 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 236785399236 + 76354952976 = 486606^2 + 276324^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-3 number, since 3×313140352212³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313140352219) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39896733 + ... + 39904580.

Almost surely, 2^313140352212 is an apocalyptic number.

It is an amenable number.

313140352212 is an abundant number, since it is smaller than the sum of its proper divisors (485670800928).

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

313140352212 is a wasteful number, since it uses less digits than its factorization.

313140352212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79801432 (or 79801427 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 313140352212 its reverse (212253041313), we get a palindrome (525393393525).

The spelling of 313140352212 in words is "three hundred thirteen billion, one hundred forty million, three hundred fifty-two thousand, two hundred twelve".