1312224044 has 12 divisors (see below), whose sum is σ = 2306421600. Its totient is φ = 653246448.

The previous prime is 1312224041. The next prime is 1312224047. The reversal of 1312224044 is 4404222131.

It is an interprime number because it is at equal distance from previous prime (1312224041) and next prime (1312224047).

It is not an unprimeable number, because it can be changed into a prime (1312224041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715364 + ... + 717195.

It is an arithmetic number, because the mean of its divisors is an integer number (192201800).

Almost surely, 2^1312224044 is an apocalyptic number.

It is an amenable number.

1312224044 is a deficient number, since it is larger than the sum of its proper divisors (994197556).

1312224044 is a wasteful number, since it uses less digits than its factorization.

1312224044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432792 (or 1432790 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 1312224044 is about 36224.6331106334. The cubic root of 1312224044 is about 1094.8030459692.

Adding to 1312224044 its reverse (4404222131), we get a palindrome (5716446175).

The spelling of 1312224044 in words is "one billion, three hundred twelve million, two hundred twenty-four thousand, forty-four".