121344133 has 4 divisors (see below), whose sum is σ = 124303788. Its totient is φ = 118384480.

The previous prime is 121344131. The next prime is 121344161. The reversal of 121344133 is 331443121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9132484 + 112211649 = 3022^2 + 10593^2 .

It is a cyclic number.

It is not a de Polignac number, because 121344133 - 2¹ = 121344131 is a prime.

It is a super-2 number, since 2×121344133² = 29448797227043378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121344131) 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 in 3 ways as a sum of consecutive naturals, for example, 1479766 + ... + 1479847.

It is an arithmetic number, because the mean of its divisors is an integer number (31075947).

Almost surely, 2^121344133 is an apocalyptic number.

It is an amenable number.

121344133 is a deficient number, since it is larger than the sum of its proper divisors (2959655).

121344133 is an equidigital number, since it uses as much as digits as its factorization.

121344133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2959654.

The product of its digits is 864, while the sum is 22.

The square root of 121344133 is about 11015.6313028351. The cubic root of 121344133 is about 495.0772018485.

Adding to 121344133 its reverse (331443121), we get a palindrome (452787254).

The spelling of 121344133 in words is "one hundred twenty-one million, three hundred forty-four thousand, one hundred thirty-three".