1121128866139 has 4 divisors (see below), whose sum is σ = 1121171532256. Its totient is φ = 1121086200024.

The previous prime is 1121128866071. The next prime is 1121128866157. The reversal of 1121128866139 is 9316688211211.

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 1121128866139 - 2⁹ = 1121128865627 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121128866092 and 1121128866101.

It is not an unprimeable number, because it can be changed into a prime (1121128866439) 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, 21293619 + ... + 21346204.

It is an arithmetic number, because the mean of its divisors is an integer number (280292883064).

Almost surely, 2^{1121128866139} is an apocalyptic number.

1121128866139 is a deficient number, since it is larger than the sum of its proper divisors (42666117).

1121128866139 is an equidigital number, since it uses as much as digits as its factorization.

1121128866139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42666116.

The product of its digits is 248832, while the sum is 49.

The spelling of 1121128866139 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-eight million, eight hundred sixty-six thousand, one hundred thirty-nine".