1103020011 has 16 divisors (see below), whose sum is σ = 1654281120. Its totient is φ = 735345216.

The previous prime is 1103020001. The next prime is 1103020033. The reversal of 1103020011 is 1100203011.

It is not a de Polignac number, because 1103020011 - 2⁵ = 1103019979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1103019975 and 1103020002.

It is not an unprimeable number, because it can be changed into a prime (1103020001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249990 + ... + 254363.

It is an arithmetic number, because the mean of its divisors is an integer number (103392570).

Almost surely, 2^1103020011 is an apocalyptic number.

1103020011 is a deficient number, since it is larger than the sum of its proper divisors (551261109).

1103020011 is an frugal number, since it uses more digits than its factorization.

1103020011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504374 (or 504356 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1103020011 is about 33211.7450761022. The cubic root of 1103020011 is about 1033.2239483820.

Adding to 1103020011 its reverse (1100203011), we get a palindrome (2203223022).

The spelling of 1103020011 in words is "one billion, one hundred three million, twenty thousand, eleven".