244120263313 has 4 divisors (see below), whose sum is σ = 258480278820. Its totient is φ = 229760247808.

The previous prime is 244120263311. The next prime is 244120263319. The reversal of 244120263313 is 313362021442.

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 229509981184 + 14610282129 = 479072^2 + 120873^2 .

It is a cyclic number.

It is not a de Polignac number, because 244120263313 - 2¹ = 244120263311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (244120263311) 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, 7180007728 + ... + 7180007761.

It is an arithmetic number, because the mean of its divisors is an integer number (64620069705).

Almost surely, 2^244120263313 is an apocalyptic number.

It is an amenable number.

244120263313 is a deficient number, since it is larger than the sum of its proper divisors (14360015507).

244120263313 is a wasteful number, since it uses less digits than its factorization.

244120263313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14360015506.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 244120263313 its reverse (313362021442), we get a palindrome (557482284755).

The spelling of 244120263313 in words is "two hundred forty-four billion, one hundred twenty million, two hundred sixty-three thousand, three hundred thirteen".