1311240004 has 12 divisors (see below), whose sum is σ = 2303139328. Its totient is φ = 653200200.

The previous prime is 1311239933. The next prime is 1311240019. The reversal of 1311240004 is 4000421131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311240004.

It is an unprimeable number.

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, 603732 + ... + 605899.

Almost surely, 2^1311240004 is an apocalyptic number.

It is an amenable number.

1311240004 is a deficient number, since it is larger than the sum of its proper divisors (991899324).

1311240004 is a wasteful number, since it uses less digits than its factorization.

1311240004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209906 (or 1209904 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1311240004 is about 36211.0480930889. The cubic root of 1311240004 is about 1094.5293123782.

Adding to 1311240004 its reverse (4000421131), we get a palindrome (5311661135).

The spelling of 1311240004 in words is "one billion, three hundred eleven million, two hundred forty thousand, four".