121039 has 2 divisors, whose sum is σ = 121040. Its totient is φ = 121038.

The previous prime is 121021. The next prime is 121061. The reversal of 121039 is 930121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121039 - 2⁵ = 121007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60519 + 60520.

It is an arithmetic number, because the mean of its divisors is an integer number (60520).

2¹²¹⁰³⁹ is an apocalyptic number.

121039 is a deficient number, since it is larger than the sum of its proper divisors (1).

121039 is an equidigital number, since it uses as much as digits as its factorization.

121039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 121039 is about 347.9065966607. The cubic root of 121039 is about 49.4661878399.

The spelling of 121039 in words is "one hundred twenty-one thousand, thirty-nine".