1131042343 has 8 divisors (see below), whose sum is σ = 1148834160. Its totient is φ = 1113277440.

The previous prime is 1131042329. The next prime is 1131042377. The reversal of 1131042343 is 3432401311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131042343 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 (1131042383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88413 + ... + 100393.

It is an arithmetic number, because the mean of its divisors is an integer number (143604270).

Almost surely, 2^1131042343 is an apocalyptic number.

1131042343 is a deficient number, since it is larger than the sum of its proper divisors (17791817).

1131042343 is a wasteful number, since it uses less digits than its factorization.

1131042343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13457.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1131042343 is about 33630.9729713548. The cubic root of 1131042343 is about 1041.9005996744.

Adding to 1131042343 its reverse (3432401311), we get a palindrome (4563443654).

The spelling of 1131042343 in words is "one billion, one hundred thirty-one million, forty-two thousand, three hundred forty-three".