1121305441 has 4 divisors (see below), whose sum is σ = 1131228612. Its totient is φ = 1111382272.

The previous prime is 1121305411. The next prime is 1121305481. The reversal of 1121305441 is 1445031211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98585041 + 1022720400 = 9929^2 + 31980^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121305441 - 2¹⁵ = 1121272673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121305411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4961416 + ... + 4961641.

It is an arithmetic number, because the mean of its divisors is an integer number (282807153).

Almost surely, 2^1121305441 is an apocalyptic number.

It is an amenable number.

1121305441 is a deficient number, since it is larger than the sum of its proper divisors (9923171).

1121305441 is an equidigital number, since it uses as much as digits as its factorization.

1121305441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9923170.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1121305441 is about 33485.8991368009. The cubic root of 1121305441 is about 1038.9021455362.

Adding to 1121305441 its reverse (1445031211), we get a palindrome (2566336652).

The spelling of 1121305441 in words is "one billion, one hundred twenty-one million, three hundred five thousand, four hundred forty-one".