1312444441 has 24 divisors (see below), whose sum is σ = 1661518656. Its totient is φ = 1007154720.

The previous prime is 1312444433. The next prime is 1312444451. The reversal of 1312444441 is 1444442131.

It is not a de Polignac number, because 1312444441 - 2³ = 1312444433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312444451) 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 23 ways as a sum of consecutive naturals, for example, 343755 + ... + 347551.

It is an arithmetic number, because the mean of its divisors is an integer number (69229944).

Almost surely, 2^1312444441 is an apocalyptic number.

1312444441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1312444441 is a deficient number, since it is larger than the sum of its proper divisors (349074215).

1312444441 is an equidigital number, since it uses as much as digits as its factorization.

1312444441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3949 (or 3882 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

The square root of 1312444441 is about 36227.6750703105. The cubic root of 1312444441 is about 1094.8643357569.

Adding to 1312444441 its reverse (1444442131), we get a palindrome (2756886572).

The spelling of 1312444441 in words is "one billion, three hundred twelve million, four hundred forty-four thousand, four hundred forty-one".