23121203 has 8 divisors (see below), whose sum is σ = 26464608. Its totient is φ = 19787904.

The previous prime is 23121193. The next prime is 23121209. The reversal of 23121203 is 30212132.

It is a happy number.

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 23121203 - 2¹⁰ = 23120179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23121209) 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, 3275 + ... + 7547.

It is an arithmetic number, because the mean of its divisors is an integer number (3308076).

Almost surely, 2^23121203 is an apocalyptic number.

23121203 is a deficient number, since it is larger than the sum of its proper divisors (3343405).

23121203 is an equidigital number, since it uses as much as digits as its factorization.

23121203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5053.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 23121203 is about 4808.4512059498. The cubic root of 23121203 is about 284.8853668458.

Adding to 23121203 its reverse (30212132), we get a palindrome (53333335).

The spelling of 23121203 in words is "twenty-three million, one hundred twenty-one thousand, two hundred three".