121711 has 2 divisors, whose sum is σ = 121712.
Its totient is φ = 121710.
The previous prime is 121697. The next prime is 121721. The reversal of 121711 is 117121.
Adding to 121711 its reverse (117121), we get a palindrome (238832).
It can be divided in two parts, 1 and 21711, that added together give a palindrome (21712).
It is a strong prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-121711 is a prime.
It is a plaindrome in base 8.
It is a junction number, because it is equal to n+sod(n) for n = 121691 and 121700.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (121721) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60855 + 60856.
It is an arithmetic number, because the mean of its divisors is an integer number (60856).
2121711 is an apocalyptic number.
121711 is a deficient number, since it is larger than the sum of its proper divisors (1).
121711 is an equidigital number, since it uses as much as digits as its factorization.
121711 is an odious number, because the sum of its binary digits is odd.
The product of its digits is 14, while the sum is 13.
The square root of 121711 is about 348.8710363444.
The cubic root of 121711 is about 49.5575632080.
The spelling of 121711 in words is "one hundred twenty-one thousand, seven hundred eleven", and thus it is an iban number.