121027 has 4 divisors (see below), whose sum is σ = 124336. Its totient is φ = 117720.

The previous prime is 121021. The next prime is 121039. The reversal of 121027 is 720121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 720121 = 43 ⋅16747.

It is a cyclic number.

It is not a de Polignac number, because 121027 - 2³ = 121019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120998 and 121016.

It is not an unprimeable number, because it can be changed into a prime (121021) 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, 1599 + ... + 1672.

It is an arithmetic number, because the mean of its divisors is an integer number (31084).

2¹²¹⁰²⁷ is an apocalyptic number.

121027 is a deficient number, since it is larger than the sum of its proper divisors (3309).

121027 is an equidigital number, since it uses as much as digits as its factorization.

121027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308.

The product of its (nonzero) digits is 28, while the sum is 13.

The square root of 121027 is about 347.8893502250. The cubic root of 121027 is about 49.4645530669.

Adding to 121027 its reverse (720121), we get a palindrome (841148).

The spelling of 121027 in words is "one hundred twenty-one thousand, twenty-seven", and thus it is an iban number.