1131044043 has 4 divisors (see below), whose sum is σ = 1508058728. Its totient is φ = 754029360.

The previous prime is 1131044029. The next prime is 1131044077. The reversal of 1131044043 is 3404401311.

1131044043 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1131044043 - 2⁵ = 1131044011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131044003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188507338 + ... + 188507343.

It is an arithmetic number, because the mean of its divisors is an integer number (377014682).

Almost surely, 2^1131044043 is an apocalyptic number.

1131044043 is a deficient number, since it is larger than the sum of its proper divisors (377014685).

1131044043 is an equidigital number, since it uses as much as digits as its factorization.

1131044043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377014684.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1131044043 is about 33630.9982456662. The cubic root of 1131044043 is about 1041.9011216797.

Adding to 1131044043 its reverse (3404401311), we get a palindrome (4535445354).

The spelling of 1131044043 in words is "one billion, one hundred thirty-one million, forty-four thousand, forty-three".