121416383 has 4 divisors (see below), whose sum is σ = 132454248. Its totient is φ = 110378520.

The previous prime is 121416377. The next prime is 121416437. The reversal of 121416383 is 383614121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 383614121 = 11 ⋅34874011.

It is a cyclic number.

It is not a de Polignac number, because 121416383 - 2¹⁶ = 121350847 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121416343) 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, 5518916 + ... + 5518937.

It is an arithmetic number, because the mean of its divisors is an integer number (33113562).

Almost surely, 2^121416383 is an apocalyptic number.

121416383 is a deficient number, since it is larger than the sum of its proper divisors (11037865).

121416383 is a wasteful number, since it uses less digits than its factorization.

121416383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11037864.

The product of its digits is 3456, while the sum is 29.

The square root of 121416383 is about 11018.9102455733. The cubic root of 121416383 is about 495.1754409917.

The spelling of 121416383 in words is "one hundred twenty-one million, four hundred sixteen thousand, three hundred eighty-three".