1130243222440 has 64 divisors (see below), whose sum is σ = 2616184636560. Its totient is φ = 439136317440.

The previous prime is 1130243222419. The next prime is 1130243222447. The reversal of 1130243222440 is 442223420311.

It can be written as a sum of positive squares in 8 ways, for example, as 634517392356 + 495725830084 = 796566^2 + 704078^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1130243222399 and 1130243222408.

It is not an unprimeable number, because it can be changed into a prime (1130243222447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233730 + ... + 1521550.

Almost surely, 2^{1130243222440} is an apocalyptic number.

1130243222440 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 1130243222440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308092318280).

1130243222440 is an abundant number, since it is smaller than the sum of its proper divisors (1485941414120).

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

1130243222440 is a wasteful number, since it uses less digits than its factorization.

1130243222440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1288462 (or 1288458 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1130243222440 its reverse (442223420311), we get a palindrome (1572466642751).

The spelling of 1130243222440 in words is "one trillion, one hundred thirty billion, two hundred forty-three million, two hundred twenty-two thousand, four hundred forty".