313113001212 has 72 divisors (see below), whose sum is σ = 914223007152. Its totient is φ = 89301388800.

The previous prime is 313113001207. The next prime is 313113001219. The reversal of 313113001212 is 212100311313.

313113001212 is a `hidden beast` number, since 31 + 311 + 300 + 1 + 21 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313113001219) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23248839 + ... + 23262302.

It is an arithmetic number, because the mean of its divisors is an integer number (12697541766).

Almost surely, 2^313113001212 is an apocalyptic number.

It is an amenable number.

313113001212 is an abundant number, since it is smaller than the sum of its proper divisors (601110005940).

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

313113001212 is a wasteful number, since it uses less digits than its factorization.

313113001212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46511179 (or 46511174 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 313113001212 its reverse (212100311313), we get a palindrome (525213312525).

The spelling of 313113001212 in words is "three hundred thirteen billion, one hundred thirteen million, one thousand, two hundred twelve".