1121807183 has 4 divisors (see below), whose sum is σ = 1282065360. Its totient is φ = 961549008.

The previous prime is 1121807119. The next prime is 1121807201. The reversal of 1121807183 is 3817081211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3817081211 = 28027 ⋅136193.

It is not a de Polignac number, because 1121807183 - 2⁶ = 1121807119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121807983) 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, 80129078 + ... + 80129091.

It is an arithmetic number, because the mean of its divisors is an integer number (320516340).

Almost surely, 2^1121807183 is an apocalyptic number.

1121807183 is a deficient number, since it is larger than the sum of its proper divisors (160258177).

1121807183 is an equidigital number, since it uses as much as digits as its factorization.

1121807183 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160258176.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 1121807183 is about 33493.3901389513. The cubic root of 1121807183 is about 1039.0570789713.

Adding to 1121807183 its reverse (3817081211), we get a palindrome (4938888394).

The spelling of 1121807183 in words is "one billion, one hundred twenty-one million, eight hundred seven thousand, one hundred eighty-three".