1311134242 has 16 divisors (see below), whose sum is σ = 2195389152. Its totient is φ = 582109920.

The previous prime is 1311134213. The next prime is 1311134261. The reversal of 1311134242 is 2424311131.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692043 + ... + 693934.

It is an arithmetic number, because the mean of its divisors is an integer number (137211822).

Almost surely, 2^1311134242 is an apocalyptic number.

1311134242 is a deficient number, since it is larger than the sum of its proper divisors (884254910).

1311134242 is a wasteful number, since it uses less digits than its factorization.

1311134242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386033.

The product of its digits is 576, while the sum is 22.

The square root of 1311134242 is about 36209.5877082300. The cubic root of 1311134242 is about 1094.4998840709.

Adding to 1311134242 its reverse (2424311131), we get a palindrome (3735445373).

The spelling of 1311134242 in words is "one billion, three hundred eleven million, one hundred thirty-four thousand, two hundred forty-two".