1101103120 has 40 divisors (see below), whose sum is σ = 2756995416. Its totient is φ = 406560768.

The previous prime is 1101103099. The next prime is 1101103121. The reversal of 1101103120 is 213011011.

It can be written as a sum of positive squares in 4 ways, for example, as 19219456 + 1081883664 = 4384^2 + 32892^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1101103097 and 1101103106.

It is not an unprimeable number, because it can be changed into a prime (1101103121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528337 + ... + 530416.

Almost surely, 2^1101103120 is an apocalyptic number.

1101103120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101103120 is an abundant number, since it is smaller than the sum of its proper divisors (1655892296).

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

1101103120 is a wasteful number, since it uses less digits than its factorization.

1101103120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1058779 (or 1058773 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1101103120 is about 33182.8738960326. The cubic root of 1101103120 is about 1032.6250695170.

Adding to 1101103120 its reverse (213011011), we get a palindrome (1314114131).

The spelling of 1101103120 in words is "one billion, one hundred one million, one hundred three thousand, one hundred twenty".