121121203 has 8 divisors (see below), whose sum is σ = 139143008. Its totient is φ = 103279104.

The previous prime is 121121201. The next prime is 121121213. The reversal of 121121203 is 302121121.

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

It is a cyclic number.

It is not a de Polignac number, because 121121203 - 2¹ = 121121201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121121201) 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, 43476 + ... + 46177.

It is an arithmetic number, because the mean of its divisors is an integer number (17392876).

Almost surely, 2^121121203 is an apocalyptic number.

121121203 is a deficient number, since it is larger than the sum of its proper divisors (18021805).

121121203 is an equidigital number, since it uses as much as digits as its factorization.

121121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89853.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 121121203 is about 11005.5078483458. The cubic root of 121121203 is about 494.7738353953.

Adding to 121121203 its reverse (302121121), we get a palindrome (423242324).

The spelling of 121121203 in words is "one hundred twenty-one million, one hundred twenty-one thousand, two hundred three".