1311043104 has 192 divisors, whose sum is σ = 4393267200. Its totient is φ = 372605184.

The previous prime is 1311043099. The next prime is 1311043117. The reversal of 1311043104 is 4013401131.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1445019 + ... + 1445925.

It is an arithmetic number, because the mean of its divisors is an integer number (22881600).

Almost surely, 2^1311043104 is an apocalyptic number.

1311043104 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311043104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2196633600).

1311043104 is an abundant number, since it is smaller than the sum of its proper divisors (3082224096).

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

1311043104 is a wasteful number, since it uses less digits than its factorization.

1311043104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172 (or 1158 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1311043104 is about 36208.3292075180. The cubic root of 1311043104 is about 1094.4745236263.

Adding to 1311043104 its reverse (4013401131), we get a palindrome (5324444235).

The spelling of 1311043104 in words is "one billion, three hundred eleven million, forty-three thousand, one hundred four".