10721203 has 4 divisors (see below), whose sum is σ = 11351880. Its totient is φ = 10090528.

The previous prime is 10721159. The next prime is 10721219. The reversal of 10721203 is 30212701.

It is a happy number.

10721203 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 10721203 - 2¹⁷ = 10590131 is a prime.

It is a super-2 number, since 2×10721203² = 229888387534418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10721003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 315313 + ... + 315346.

It is an arithmetic number, because the mean of its divisors is an integer number (2837970).

Almost surely, 2^10721203 is an apocalyptic number.

10721203 is a deficient number, since it is larger than the sum of its proper divisors (630677).

10721203 is an equidigital number, since it uses as much as digits as its factorization.

10721203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630676.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 10721203 is about 3274.3248158972. The cubic root of 10721203 is about 220.5030019662.

Adding to 10721203 its reverse (30212701), we get a palindrome (40933904).

The spelling of 10721203 in words is "ten million, seven hundred twenty-one thousand, two hundred three".