1131044056 has 32 divisors (see below), whose sum is σ = 2163934080. Its totient is φ = 554112000.

The previous prime is 1131044029. The next prime is 1131044077. The reversal of 1131044056 is 6504401311.

It is a super-2 number, since 2×1131044056² = 2558521313225862272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1131044056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71161 + ... + 85591.

It is an arithmetic number, because the mean of its divisors is an integer number (67622940).

Almost surely, 2^1131044056 is an apocalyptic number.

It is an amenable number.

1131044056 is a deficient number, since it is larger than the sum of its proper divisors (1032890024).

1131044056 is a wasteful number, since it uses less digits than its factorization.

1131044056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14635 (or 14631 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1131044056 is about 33630.9984389402. The cubic root of 1131044056 is about 1041.9011256715.

Adding to 1131044056 its reverse (6504401311), we get a palindrome (7635445367).

The spelling of 1131044056 in words is "one billion, one hundred thirty-one million, forty-four thousand, fifty-six".