1103031320 has 64 divisors (see below), whose sum is σ = 2624076000. Its totient is φ = 416130048.

The previous prime is 1103031317. The next prime is 1103031331. The reversal of 1103031320 is 231303011.

It is a junction number, because it is equal to n+sod(n) for n = 1103031295 and 1103031304.

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, 173966 + ... + 180194.

Almost surely, 2^1103031320 is an apocalyptic number.

1103031320 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 1103031320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312038000).

1103031320 is an abundant number, since it is smaller than the sum of its proper divisors (1521044680).

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

1103031320 is a wasteful number, since it uses less digits than its factorization.

1103031320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6492 (or 6488 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1103031320 is about 33211.9153316999. The cubic root of 1103031320 is about 1033.2274795025.

Adding to 1103031320 its reverse (231303011), we get a palindrome (1334334331).

The spelling of 1103031320 in words is "one billion, one hundred three million, thirty-one thousand, three hundred twenty".