1312244868 has 24 divisors (see below), whose sum is σ = 3340260000. Its totient is φ = 397649920.

The previous prime is 1312244863. The next prime is 1312244873. The reversal of 1312244868 is 8684422131.

It is an interprime number because it is at equal distance from previous prime (1312244863) and next prime (1312244873).

It is not an unprimeable number, because it can be changed into a prime (1312244863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4970493 + ... + 4970756.

It is an arithmetic number, because the mean of its divisors is an integer number (139177500).

Almost surely, 2^1312244868 is an apocalyptic number.

It is an amenable number.

1312244868 is an abundant number, since it is smaller than the sum of its proper divisors (2028015132).

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

1312244868 is a wasteful number, since it uses less digits than its factorization.

1312244868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9941267 (or 9941265 counting only the distinct ones).

The product of its digits is 73728, while the sum is 39.

The square root of 1312244868 is about 36224.9205382151. The cubic root of 1312244868 is about 1094.8088371698.

Adding to 1312244868 its reverse (8684422131), we get a palindrome (9996666999).

The spelling of 1312244868 in words is "one billion, three hundred twelve million, two hundred forty-four thousand, eight hundred sixty-eight".