1121055411 has 8 divisors (see below), whose sum is σ = 1708274944. Its totient is φ = 640603080.

The previous prime is 1121055391. The next prime is 1121055413. The reversal of 1121055411 is 1145501211.

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

It is not a de Polignac number, because 1121055411 - 2¹¹ = 1121053363 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 53383591 = 1121055411 / (1 + 1 + 2 + 1 + 0 + 5 + 5 + 4 + 1 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121055413) 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, 26691775 + ... + 26691816.

It is an arithmetic number, because the mean of its divisors is an integer number (213534368).

Almost surely, 2^1121055411 is an apocalyptic number.

1121055411 is a deficient number, since it is larger than the sum of its proper divisors (587219533).

1121055411 is an equidigital number, since it uses as much as digits as its factorization.

1121055411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53383601.

The product of its (nonzero) digits is 200, while the sum is 21.

The square root of 1121055411 is about 33482.1655661637. The cubic root of 1121055411 is about 1038.8249212571.

Adding to 1121055411 its reverse (1145501211), we get a palindrome (2266556622).

The spelling of 1121055411 in words is "one billion, one hundred twenty-one million, fifty-five thousand, four hundred eleven".