121411 has 4 divisors (see below), whose sum is σ = 122112. Its totient is φ = 120712.

The previous prime is 121403. The next prime is 121421. The reversal of 121411 is 114121.

121411 = T₂₈₃ + T₂₈₄ + T₂₈₅.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 121411 - 2³ = 121403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121421) 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, 126 + ... + 508.

It is an arithmetic number, because the mean of its divisors is an integer number (30528).

2¹²¹⁴¹¹ is an apocalyptic number.

121411 is the 285-th centered triangular number.

121411 is a deficient number, since it is larger than the sum of its proper divisors (701).

121411 is an equidigital number, since it uses as much as digits as its factorization.

121411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700.

The product of its digits is 8, while the sum is 10.

The square root of 121411 is about 348.4408127645. The cubic root of 121411 is about 49.5168123010.

Adding to 121411 its reverse (114121), we get a palindrome (235532).

It can be divided in two parts, 1214 and 11, that added together give a triangular number (1225 = T₄₉).

The spelling of 121411 in words is "one hundred twenty-one thousand, four hundred eleven", and thus it is an iban number.