1131043344 has 60 divisors (see below), whose sum is σ = 2985631824. Its totient is φ = 368958272.

The previous prime is 1131043313. The next prime is 1131043409. The reversal of 1131043344 is 4433401311.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100699 + ... + 111365.

Almost surely, 2^1131043344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131043344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1492815912).

1131043344 is an abundant number, since it is smaller than the sum of its proper divisors (1854588480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131043344 is a wasteful number, since it uses less digits than its factorization.

1131043344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10772 (or 10719 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1131043344 is about 33630.9878534663. The cubic root of 1131043344 is about 1041.9009070435.

Adding to 1131043344 its reverse (4433401311), we get a palindrome (5564444655).

The spelling of 1131043344 in words is "one billion, one hundred thirty-one million, forty-three thousand, three hundred forty-four".