1121828171 has 2 divisors, whose sum is σ = 1121828172. Its totient is φ = 1121828170.

The previous prime is 1121828167. The next prime is 1121828189. The reversal of 1121828171 is 1718281211.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1718281211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121828171 - 2² = 1121828167 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121828111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560914085 + 560914086.

It is an arithmetic number, because the mean of its divisors is an integer number (560914086).

Almost surely, 2^1121828171 is an apocalyptic number.

1121828171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121828171 is an equidigital number, since it uses as much as digits as its factorization.

1121828171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1792, while the sum is 32.

The square root of 1121828171 is about 33493.7034530373. The cubic root of 1121828171 is about 1039.0635588710.

The spelling of 1121828171 in words is "one billion, one hundred twenty-one million, eight hundred twenty-eight thousand, one hundred seventy-one".