1131050240 has 72 divisors (see below), whose sum is σ = 2851870560. Its totient is φ = 428599296.

The previous prime is 1131050233. The next prime is 1131050243. The reversal of 1131050240 is 420501311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131050243) 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, 1067 + ... + 47573.

Almost surely, 2^1131050240 is an apocalyptic number.

1131050240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131050240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1425935280).

1131050240 is an abundant number, since it is smaller than the sum of its proper divisors (1720820320).

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

1131050240 is an equidigital number, since it uses as much as digits as its factorization.

1131050240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46547 (or 46533 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1131050240 is about 33631.0903778037. The cubic root of 1131050240 is about 1041.9030245379.

Adding to 1131050240 its reverse (420501311), we get a palindrome (1551551551).

The spelling of 1131050240 in words is "one billion, one hundred thirty-one million, fifty thousand, two hundred forty".