10203323021 has 8 divisors (see below), whose sum is σ = 10225908000. Its totient is φ = 10180758960.

The previous prime is 10203322999. The next prime is 10203323027. The reversal of 10203323021 is 12032330201.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10203323021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203323027) 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, 1321430 + ... + 1329128.

It is an arithmetic number, because the mean of its divisors is an integer number (1278238500).

Almost surely, 2^10203323021 is an apocalyptic number.

It is an amenable number.

10203323021 is a deficient number, since it is larger than the sum of its proper divisors (22584979).

10203323021 is an equidigital number, since it uses as much as digits as its factorization.

10203323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10459.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 10203323021 its reverse (12032330201), we get a palindrome (22235653222).

The spelling of 10203323021 in words is "ten billion, two hundred three million, three hundred twenty-three thousand, twenty-one".