1121288028171 has 4 divisors (see below), whose sum is σ = 1495050704232. Its totient is φ = 747525352112.

The previous prime is 1121288028169. The next prime is 1121288028229. The reversal of 1121288028171 is 1718208821211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121288028171 - 2¹ = 1121288028169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121288028071) 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, 186881338026 + ... + 186881338031.

It is an arithmetic number, because the mean of its divisors is an integer number (373762676058).

Almost surely, 2^{1121288028171} is an apocalyptic number.

1121288028171 is a deficient number, since it is larger than the sum of its proper divisors (373762676061).

1121288028171 is an equidigital number, since it uses as much as digits as its factorization.

1121288028171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373762676060.

The product of its (nonzero) digits is 28672, while the sum is 42.

The spelling of 1121288028171 in words is "one trillion, one hundred twenty-one billion, two hundred eighty-eight million, twenty-eight thousand, one hundred seventy-one".