10231202321 has 4 divisors (see below), whose sum is σ = 10232344500. Its totient is φ = 10230060144.

The previous prime is 10231202257. The next prime is 10231202347. The reversal of 10231202321 is 12320213201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6207076225 + 4024126096 = 78785^2 + 63436^2 .

It is a cyclic number.

It is not a de Polignac number, because 10231202321 - 2⁶ = 10231202257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10231202321.

It is not an unprimeable number, because it can be changed into a prime (10231207321) 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, 557546 + ... + 575603.

It is an arithmetic number, because the mean of its divisors is an integer number (2558086125).

Almost surely, 2^10231202321 is an apocalyptic number.

It is an amenable number.

10231202321 is a deficient number, since it is larger than the sum of its proper divisors (1142179).

10231202321 is an equidigital number, since it uses as much as digits as its factorization.

10231202321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142178.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10231202321 its reverse (12320213201), we get a palindrome (22551415522).

The spelling of 10231202321 in words is "ten billion, two hundred thirty-one million, two hundred two thousand, three hundred twenty-one".