1121315441 has 4 divisors (see below), whose sum is σ = 1132875492. Its totient is φ = 1109755392.

The previous prime is 1121315423. The next prime is 1121315513. The reversal of 1121315441 is 1445131211.

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 875923216 + 245392225 = 29596^2 + 15665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121315441 - 2¹⁰ = 1121314417 is a prime.

It is a super-3 number, since 3×1121315441³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121315411) 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, 5779880 + ... + 5780073.

It is an arithmetic number, because the mean of its divisors is an integer number (283218873).

Almost surely, 2^1121315441 is an apocalyptic number.

It is an amenable number.

1121315441 is a deficient number, since it is larger than the sum of its proper divisors (11560051).

1121315441 is an equidigital number, since it uses as much as digits as its factorization.

1121315441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11560050.

The product of its digits is 480, while the sum is 23.

The square root of 1121315441 is about 33486.0484530498. The cubic root of 1121315441 is about 1038.9052338980.

Adding to 1121315441 its reverse (1445131211), we get a palindrome (2566446652).

The spelling of 1121315441 in words is "one billion, one hundred twenty-one million, three hundred fifteen thousand, four hundred forty-one".