1101243330 has 128 divisors (see below), whose sum is σ = 3278499840. Its totient is φ = 260729280.

The previous prime is 1101243317. The next prime is 1101243337. The reversal of 1101243330 is 333421011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1101243337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 123399 + ... + 132021.

It is an arithmetic number, because the mean of its divisors is an integer number (25613280).

Almost surely, 2^1101243330 is an apocalyptic number.

1101243330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1101243330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1639249920).

1101243330 is an abundant number, since it is smaller than the sum of its proper divisors (2177256510).

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

1101243330 is a wasteful number, since it uses less digits than its factorization.

1101243330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8693 (or 8687 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1101243330 is about 33184.9865149890. The cubic root of 1101243330 is about 1032.6688977511.

Adding to 1101243330 its reverse (333421011), we get a palindrome (1434664341).

The spelling of 1101243330 in words is "one billion, one hundred one million, two hundred forty-three thousand, three hundred thirty".