10015240321 has 4 divisors (see below), whose sum is σ = 10019648772. Its totient is φ = 10010831872.

The previous prime is 10015240303. The next prime is 10015240331. The reversal of 10015240321 is 12304251001.

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 4996934721 + 5018305600 = 70689^2 + 70840^2 .

It is a cyclic number.

It is not a de Polignac number, because 10015240321 - 2²⁹ = 9478369409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10015240331) 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, 2200816 + ... + 2205361.

It is an arithmetic number, because the mean of its divisors is an integer number (2504912193).

Almost surely, 2^10015240321 is an apocalyptic number.

It is an amenable number.

10015240321 is a deficient number, since it is larger than the sum of its proper divisors (4408451).

10015240321 is an equidigital number, since it uses as much as digits as its factorization.

10015240321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4408450.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 10015240321 its reverse (12304251001), we get a palindrome (22319491322).

The spelling of 10015240321 in words is "ten billion, fifteen million, two hundred forty thousand, three hundred twenty-one".