10244140321 has 4 divisors (see below), whose sum is σ = 10493997444. Its totient is φ = 9994283200.

The previous prime is 10244140243. The next prime is 10244140337. The reversal of 10244140321 is 12304144201.

It is a happy number.

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 4534675600 + 5709464721 = 67340^2 + 75561^2 .

It is a cyclic number.

It is not a de Polignac number, because 10244140321 - 2¹⁵ = 10244107553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10244140292 and 10244140301.

It is not an unprimeable number, because it can be changed into a prime (10244141321) 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, 124928500 + ... + 124928581.

It is an arithmetic number, because the mean of its divisors is an integer number (2623499361).

Almost surely, 2^10244140321 is an apocalyptic number.

It is an amenable number.

10244140321 is a deficient number, since it is larger than the sum of its proper divisors (249857123).

10244140321 is an equidigital number, since it uses as much as digits as its factorization.

10244140321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249857122.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 10244140321 its reverse (12304144201), we get a palindrome (22548284522).

The spelling of 10244140321 in words is "ten billion, two hundred forty-four million, one hundred forty thousand, three hundred twenty-one".