1103231320 has 64 divisors (see below), whose sum is σ = 2633536800. Its totient is φ = 414504960.

The previous prime is 1103231309. The next prime is 1103231341. The reversal of 1103231320 is 231323011.

It is a junction number, because it is equal to n+sod(n) for n = 1103231294 and 1103231303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419610 + ... + 422230.

Almost surely, 2^1103231320 is an apocalyptic number.

1103231320 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 1103231320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1316768400).

1103231320 is an abundant number, since it is smaller than the sum of its proper divisors (1530305480).

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

1103231320 is a wasteful number, since it uses less digits than its factorization.

1103231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268 (or 3264 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1103231320 is about 33214.9261627961. The cubic root of 1103231320 is about 1033.2899234857.

Adding to 1103231320 its reverse (231323011), we get a palindrome (1334554331).

The spelling of 1103231320 in words is "one billion, one hundred three million, two hundred thirty-one thousand, three hundred twenty".