121801353 has 16 divisors (see below), whose sum is σ = 169796736. Its totient is φ = 77517440.

The previous prime is 121801321. The next prime is 121801403. The reversal of 121801353 is 353108121.

It is a cyclic number.

It is not a de Polignac number, because 121801353 - 2⁵ = 121801321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121801313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41143 + ... + 44003.

It is an arithmetic number, because the mean of its divisors is an integer number (10612296).

Almost surely, 2^121801353 is an apocalyptic number.

It is an amenable number.

121801353 is a deficient number, since it is larger than the sum of its proper divisors (47995383).

121801353 is a wasteful number, since it uses less digits than its factorization.

121801353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3504.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 121801353 is about 11036.3650265837. The cubic root of 121801353 is about 495.6982330761.

Adding to 121801353 its reverse (353108121), we get a palindrome (474909474).

The spelling of 121801353 in words is "one hundred twenty-one million, eight hundred one thousand, three hundred fifty-three".