1131311342 has 32 divisors (see below), whose sum is σ = 2057363712. Its totient is φ = 455462784.

The previous prime is 1131311333. The next prime is 1131311351. The reversal of 1131311342 is 2431131311.

It is an interprime number because it is at equal distance from previous prime (1131311333) and next prime (1131311351).

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 15 ways as a sum of consecutive naturals, for example, 129773 + ... + 138215.

It is an arithmetic number, because the mean of its divisors is an integer number (64292616).

Almost surely, 2^1131311342 is an apocalyptic number.

1131311342 is a deficient number, since it is larger than the sum of its proper divisors (926052370).

1131311342 is a wasteful number, since it uses less digits than its factorization.

1131311342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9032.

The product of its digits is 216, while the sum is 20.

The square root of 1131311342 is about 33634.9720083130. The cubic root of 1131311342 is about 1041.9831925160.

Adding to 1131311342 its reverse (2431131311), we get a palindrome (3562442653).

The spelling of 1131311342 in words is "one billion, one hundred thirty-one million, three hundred eleven thousand, three hundred forty-two".