12921203 has 8 divisors (see below), whose sum is σ = 13558656. Its totient is φ = 12297600.

The previous prime is 12921179. The next prime is 12921217. The reversal of 12921203 is 30212921.

12921203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a de Polignac number, because none of the positive numbers 2^k-12921203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12921263) 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, 1526 + ... + 5307.

It is an arithmetic number, because the mean of its divisors is an integer number (1694832).

Almost surely, 2^12921203 is an apocalyptic number.

12921203 is a deficient number, since it is larger than the sum of its proper divisors (637453).

12921203 is an equidigital number, since it uses as much as digits as its factorization.

12921203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6925.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 12921203 is about 3594.6074890035. The cubic root of 12921203 is about 234.6574335730.

The spelling of 12921203 in words is "twelve million, nine hundred twenty-one thousand, two hundred three".