1121800271 has 8 divisors (see below), whose sum is σ = 1146130944. Its totient is φ = 1097712000.

The previous prime is 1121800259. The next prime is 1121800319. The reversal of 1121800271 is 1720081211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121800271 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 (1121800201) 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, 51230 + ... + 69771.

It is an arithmetic number, because the mean of its divisors is an integer number (143266368).

Almost surely, 2^1121800271 is an apocalyptic number.

1121800271 is a deficient number, since it is larger than the sum of its proper divisors (24330673).

1121800271 is a wasteful number, since it uses less digits than its factorization.

1121800271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121201.

The product of its (nonzero) digits is 224, while the sum is 23.

The square root of 1121800271 is about 33493.2869542540. The cubic root of 1121800271 is about 1039.0549449215.

Adding to 1121800271 its reverse (1720081211), we get a palindrome (2841881482).

The spelling of 1121800271 in words is "one billion, one hundred twenty-one million, eight hundred thousand, two hundred seventy-one".