121123203 has 8 divisors (see below), whose sum is σ = 163908288. Its totient is φ = 79543464.

The previous prime is 121123193. The next prime is 121123229. The reversal of 121123203 is 302321121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121123203 - 2⁴ = 121123187 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (121123273) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301101 + ... + 301502.

It is an arithmetic number, because the mean of its divisors is an integer number (20488536).

Almost surely, 2^121123203 is an apocalyptic number.

121123203 is a deficient number, since it is larger than the sum of its proper divisors (42785085).

121123203 is an equidigital number, since it uses as much as digits as its factorization.

121123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602673.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 121123203 is about 11005.5987115649. The cubic root of 121123203 is about 494.7765586791.

Adding to 121123203 its reverse (302321121), we get a palindrome (423444324).

The spelling of 121123203 in words is "one hundred twenty-one million, one hundred twenty-three thousand, two hundred three".