1131040444 has 12 divisors (see below), whose sum is σ = 1979861464. Its totient is φ = 565365744.

The previous prime is 1131040441. The next prime is 1131040489. The reversal of 1131040444 is 4440401311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131040441) 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, 21282 + ... + 52105.

Almost surely, 2^1131040444 is an apocalyptic number.

It is an amenable number.

1131040444 is a deficient number, since it is larger than the sum of its proper divisors (848821020).

1131040444 is a wasteful number, since it uses less digits than its factorization.

1131040444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77244 (or 77242 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 1131040444 is about 33630.9447384399. The cubic root of 1131040444 is about 1041.9000165633.

Adding to 1131040444 its reverse (4440401311), we get a palindrome (5571441755).

The spelling of 1131040444 in words is "one billion, one hundred thirty-one million, forty thousand, four hundred forty-four".