1312425212 has 72 divisors (see below), whose sum is σ = 2734905600. Its totient is φ = 549321696.

The previous prime is 1312425199. The next prime is 1312425217. The reversal of 1312425212 is 2125242131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312425217) 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, 1824989 + ... + 1825707.

It is an arithmetic number, because the mean of its divisors is an integer number (37984800).

Almost surely, 2^1312425212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312425212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1367452800).

1312425212 is an abundant number, since it is smaller than the sum of its proper divisors (1422480388).

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

1312425212 is a wasteful number, since it uses less digits than its factorization.

1312425212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943 (or 934 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 1312425212 is about 36227.4096783085. The cubic root of 1312425212 is about 1094.8589886736.

Adding to 1312425212 its reverse (2125242131), we get a palindrome (3437667343).

The spelling of 1312425212 in words is "one billion, three hundred twelve million, four hundred twenty-five thousand, two hundred twelve".