121120803 has 12 divisors (see below), whose sum is σ = 175652568. Its totient is φ = 80424000.

The previous prime is 121120781. The next prime is 121120819. The reversal of 121120803 is 308021121.

It is not a de Polignac number, because 121120803 - 2²⁶ = 54011939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121120823) 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 11 ways as a sum of consecutive naturals, for example, 24550 + ... + 29067.

It is an arithmetic number, because the mean of its divisors is an integer number (14637714).

Almost surely, 2^121120803 is an apocalyptic number.

121120803 is a deficient number, since it is larger than the sum of its proper divisors (54531765).

121120803 is a wasteful number, since it uses less digits than its factorization.

121120803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53874 (or 53871 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 121120803 is about 11005.4896756119. The cubic root of 121120803 is about 494.7732907349.

Adding to 121120803 its reverse (308021121), we get a palindrome (429141924).

The spelling of 121120803 in words is "one hundred twenty-one million, one hundred twenty thousand, eight hundred three".