1121104445 has 8 divisors (see below), whose sum is σ = 1345607640. Its totient is φ = 896695360.

The previous prime is 1121104441. The next prime is 1121104447. The reversal of 1121104445 is 5444011211.

It can be written as a sum of positive squares in 4 ways, for example, as 1666681 + 1119437764 = 1291^2 + 33458^2 .

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

It is not a de Polignac number, because 1121104445 - 2² = 1121104441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121104445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121104441) 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, 6071 + ... + 47739.

It is an arithmetic number, because the mean of its divisors is an integer number (168200955).

Almost surely, 2^1121104445 is an apocalyptic number.

It is an amenable number.

1121104445 is a deficient number, since it is larger than the sum of its proper divisors (224503195).

1121104445 is an equidigital number, since it uses as much as digits as its factorization.

1121104445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47055.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 1121104445 is about 33482.8977987270. The cubic root of 1121104445 is about 1038.8400668060.

Adding to 1121104445 its reverse (5444011211), we get a palindrome (6565115656).

The spelling of 1121104445 in words is "one billion, one hundred twenty-one million, one hundred four thousand, four hundred forty-five".