121028383 has 12 divisors (see below), whose sum is σ = 141177600. Its totient is φ = 103451712.

The previous prime is 121028363. The next prime is 121028419. The reversal of 121028383 is 383820121.

It is not a de Polignac number, because 121028383 - 2⁹ = 121027871 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 (121028363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15543 + ... + 21991.

It is an arithmetic number, because the mean of its divisors is an integer number (11764800).

Almost surely, 2^121028383 is an apocalyptic number.

121028383 is a deficient number, since it is larger than the sum of its proper divisors (20149217).

121028383 is an equidigital number, since it uses as much as digits as its factorization.

121028383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6846 (or 6839 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 121028383 is about 11001.2900607156. The cubic root of 121028383 is about 494.6474148000.

The spelling of 121028383 in words is "one hundred twenty-one million, twenty-eight thousand, three hundred eighty-three".