313203013212 has 12 divisors (see below), whose sum is σ = 730807030856. Its totient is φ = 104401004400.

The previous prime is 313203013139. The next prime is 313203013219. The reversal of 313203013212 is 212310302313.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×313203013212² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313203013219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13050125539 + ... + 13050125562.

Almost surely, 2^313203013212 is an apocalyptic number.

It is an amenable number.

313203013212 is an abundant number, since it is smaller than the sum of its proper divisors (417604017644).

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

313203013212 is a wasteful number, since it uses less digits than its factorization.

313203013212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26100251108 (or 26100251106 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 313203013212 its reverse (212310302313), we get a palindrome (525513315525).

The spelling of 313203013212 in words is "three hundred thirteen billion, two hundred three million, thirteen thousand, two hundred twelve".