10000021231 has 8 divisors (see below), whose sum is σ = 10589148144. Its totient is φ = 9410993280.

The previous prime is 10000021217. The next prime is 10000021249. The reversal of 10000021231 is 13212000001.

10000021231 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 not a de Polignac number, because 10000021231 - 2⁷ = 10000021103 is a prime.

It is a super-2 number, since 2×10000021231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10000031231) 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 7 ways as a sum of consecutive naturals, for example, 323361 + ... + 352933.

It is an arithmetic number, because the mean of its divisors is an integer number (1323643518).

Almost surely, 2^10000021231 is an apocalyptic number.

10000021231 is a deficient number, since it is larger than the sum of its proper divisors (589126913).

10000021231 is a wasteful number, since it uses less digits than its factorization.

10000021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49481.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 10000021231 its reverse (13212000001), we get a palindrome (23212021232).

The spelling of 10000021231 in words is "ten billion, twenty-one thousand, two hundred thirty-one".