1103231280 has 160 divisors (see below), whose sum is σ = 3527774208. Its totient is φ = 285030400.

The previous prime is 1103231251. The next prime is 1103231291. The reversal of 1103231280 is 821323011.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1879147 + ... + 1879733.

Almost surely, 2^1103231280 is an apocalyptic number.

1103231280 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 1103231280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1763887104).

1103231280 is an abundant number, since it is smaller than the sum of its proper divisors (2424542928).

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

1103231280 is a wasteful number, since it uses less digits than its factorization.

1103231280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1103231280 is about 33214.9255606572. The cubic root of 1103231280 is about 1033.2899109976.

Adding to 1103231280 its reverse (821323011), we get a palindrome (1924554291).

The spelling of 1103231280 in words is "one billion, one hundred three million, two hundred thirty-one thousand, two hundred eighty".