1103321011 has 8 divisors (see below), whose sum is σ = 1196168400. Its totient is φ = 1011613152.

The previous prime is 1103321003. The next prime is 1103321027. The reversal of 1103321011 is 1101233011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1103321011 - 2³ = 1103321003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103320982 and 1103321000.

It is not an unprimeable number, because it can be changed into a prime (1103321311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 282865 + ... + 286738.

It is an arithmetic number, because the mean of its divisors is an integer number (149521050).

Almost surely, 2^1103321011 is an apocalyptic number.

1103321011 is a deficient number, since it is larger than the sum of its proper divisors (92847389).

1103321011 is a wasteful number, since it uses less digits than its factorization.

1103321011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569765.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1103321011 is about 33216.2762964183. The cubic root of 1103321011 is about 1033.3179243511.

Adding to 1103321011 its reverse (1101233011), we get a palindrome (2204554022).

The spelling of 1103321011 in words is "one billion, one hundred three million, three hundred twenty-one thousand, eleven".