1311128814 has 16 divisors (see below), whose sum is σ = 2628236160. Its totient is φ = 436046520.

The previous prime is 1311128803. The next prime is 1311128821. The reversal of 1311128814 is 4188211131.

It is a Curzon number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 246252 + ... + 251519.

It is an arithmetic number, because the mean of its divisors is an integer number (164264760).

Almost surely, 2^1311128814 is an apocalyptic number.

1311128814 is an abundant number, since it is smaller than the sum of its proper divisors (1317107346).

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

1311128814 is a wasteful number, since it uses less digits than its factorization.

1311128814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 498215.

The product of its digits is 1536, while the sum is 30.

The square root of 1311128814 is about 36209.5127556282. The cubic root of 1311128814 is about 1094.4983736856.

Adding to 1311128814 its reverse (4188211131), we get a palindrome (5499339945).

The spelling of 1311128814 in words is "one billion, three hundred eleven million, one hundred twenty-eight thousand, eight hundred fourteen".