1131141343 has 4 divisors (see below), whose sum is σ = 1134223840. Its totient is φ = 1128058848.

The previous prime is 1131141329. The next prime is 1131141353. The reversal of 1131141343 is 3431411311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131141343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131141353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1540698 + ... + 1541431.

It is an arithmetic number, because the mean of its divisors is an integer number (283555960).

Almost surely, 2^1131141343 is an apocalyptic number.

1131141343 is a deficient number, since it is larger than the sum of its proper divisors (3082497).

1131141343 is an equidigital number, since it uses as much as digits as its factorization.

1131141343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3082496.

The product of its digits is 432, while the sum is 22.

The square root of 1131141343 is about 33632.4447966543. Note that the first 3 decimals coincide. The cubic root of 1131141343 is about 1041.9309979322.

Adding to 1131141343 its reverse (3431411311), we get a palindrome (4562552654).

The spelling of 1131141343 in words is "one billion, one hundred thirty-one million, one hundred forty-one thousand, three hundred forty-three".