1101040305 has 16 divisors (see below), whose sum is σ = 1762531584. Its totient is φ = 586932480.

The previous prime is 1101040243. The next prime is 1101040313. The reversal of 1101040305 is 5030401011.

It is not a de Polignac number, because 1101040305 - 2¹⁰ = 1101039281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15432 + ... + 49398.

It is an arithmetic number, because the mean of its divisors is an integer number (110158224).

Almost surely, 2^1101040305 is an apocalyptic number.

1101040305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1101040305 is a deficient number, since it is larger than the sum of its proper divisors (661491279).

1101040305 is a wasteful number, since it uses less digits than its factorization.

1101040305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36136.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1101040305 is about 33181.9273852499. The cubic root of 1101040305 is about 1032.6054329737.

Adding to 1101040305 its reverse (5030401011), we get a palindrome (6131441316).

It can be divided in two parts, 11010 and 40305, that added together give a palindrome (51315).

The spelling of 1101040305 in words is "one billion, one hundred one million, forty thousand, three hundred five".