121127 has 4 divisors (see below), whose sum is σ = 123240. Its totient is φ = 119016.

The previous prime is 121123. The next prime is 121139. The reversal of 121127 is 721121.

121127 is nontrivially palindromic in base 15.

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 121127 - 2² = 121123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121123) 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, 968 + ... + 1085.

It is an arithmetic number, because the mean of its divisors is an integer number (30810).

2¹²¹¹²⁷ is an apocalyptic number.

121127 is a deficient number, since it is larger than the sum of its proper divisors (2113).

121127 is an equidigital number, since it uses as much as digits as its factorization.

121127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112.

The product of its digits is 28, while the sum is 14.

The square root of 121127 is about 348.0330444081. The cubic root of 121127 is about 49.4781728751.

Adding to 121127 its reverse (721121), we get a palindrome (842248).

The spelling of 121127 in words is "one hundred twenty-one thousand, one hundred twenty-seven", and thus it is an iban number.