1312326306 has 64 divisors (see below), whose sum is σ = 2988380160. Its totient is φ = 426746880.

The previous prime is 1312326293. The next prime is 1312326313. The reversal of 1312326306 is 6036232131.

It is a happy number.

1312326306 is a `hidden beast` number, since 1 + 3 + 1 + 23 + 2 + 630 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1312326306.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 416770 + ... + 419906.

It is an arithmetic number, because the mean of its divisors is an integer number (46693440).

Almost surely, 2^1312326306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1312326306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1494190080).

1312326306 is an abundant number, since it is smaller than the sum of its proper divisors (1676053854).

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

1312326306 is a wasteful number, since it uses less digits than its factorization.

1312326306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336 (or 3330 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 1312326306 is about 36226.0445812126. The cubic root of 1312326306 is about 1094.8314846700.

Adding to 1312326306 its reverse (6036232131), we get a palindrome (7348558437).

The spelling of 1312326306 in words is "one billion, three hundred twelve million, three hundred twenty-six thousand, three hundred six".