1100023320 has 256 divisors, whose sum is σ = 3750727680. Its totient is φ = 255744000.

The previous prime is 1100023307. The next prime is 1100023339. The reversal of 1100023320 is 233200011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1100023296 and 1100023305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4932729 + ... + 4932951.

It is an arithmetic number, because the mean of its divisors is an integer number (14651280).

Almost surely, 2^1100023320 is an apocalyptic number.

1100023320 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 1100023320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1875363840).

1100023320 is an abundant number, since it is smaller than the sum of its proper divisors (2650704360).

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

1100023320 is a wasteful number, since it uses less digits than its factorization.

1100023320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386 (or 382 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1100023320 is about 33166.5994639185. The cubic root of 1100023320 is about 1032.2874101843.

Adding to 1100023320 its reverse (233200011), we get a palindrome (1333223331).

The spelling of 1100023320 in words is "one billion, one hundred million, twenty-three thousand, three hundred twenty".