1311424444 has 24 divisors (see below), whose sum is σ = 2504734848. Its totient is φ = 595838640.

The previous prime is 1311424427. The next prime is 1311424493. The reversal of 1311424444 is 4444241131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122599 + ... + 132865.

It is an arithmetic number, because the mean of its divisors is an integer number (104363952).

Almost surely, 2^1311424444 is an apocalyptic number.

It is an amenable number.

1311424444 is a deficient number, since it is larger than the sum of its proper divisors (1193310404).

1311424444 is a wasteful number, since it uses less digits than its factorization.

1311424444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13185 (or 13183 counting only the distinct ones).

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

The square root of 1311424444 is about 36213.5947400973. The cubic root of 1311424444 is about 1094.5806290762.

Adding to 1311424444 its reverse (4444241131), we get a palindrome (5755665575).

The spelling of 1311424444 in words is "one billion, three hundred eleven million, four hundred twenty-four thousand, four hundred forty-four".