10321421203 has 4 divisors (see below), whose sum is σ = 10345369248. Its totient is φ = 10297473160.

The previous prime is 10321421171. The next prime is 10321421239. The reversal of 10321421203 is 30212412301.

It is a happy number.

10321421203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30212412301 = 47 ⋅642817283.

It is a cyclic number.

It is not a de Polignac number, because 10321421203 - 2⁵ = 10321421171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10321421273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11973376 + ... + 11974237.

It is an arithmetic number, because the mean of its divisors is an integer number (2586342312).

Almost surely, 2^10321421203 is an apocalyptic number.

10321421203 is a deficient number, since it is larger than the sum of its proper divisors (23948045).

10321421203 is an equidigital number, since it uses as much as digits as its factorization.

10321421203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23948044.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 10321421203 its reverse (30212412301), we get a palindrome (40533833504).

The spelling of 10321421203 in words is "ten billion, three hundred twenty-one million, four hundred twenty-one thousand, two hundred three".