10203103221 has 8 divisors (see below), whose sum is σ = 13607030880. Its totient is φ = 6800622192.

The previous prime is 10203103177. The next prime is 10203103223. The reversal of 10203103221 is 12230130201.

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

It is not a de Polignac number, because 10203103221 - 2⁹ = 10203102709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10203103221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203103223) 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, 345091 + ... + 373488.

It is an arithmetic number, because the mean of its divisors is an integer number (1700878860).

Almost surely, 2^10203103221 is an apocalyptic number.

It is an amenable number.

10203103221 is a deficient number, since it is larger than the sum of its proper divisors (3403927659).

10203103221 is an equidigital number, since it uses as much as digits as its factorization.

10203103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 723315.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 10203103221 its reverse (12230130201), we get a palindrome (22433233422).

The spelling of 10203103221 in words is "ten billion, two hundred three million, one hundred three thousand, two hundred twenty-one".