244340132321 has 4 divisors (see below), whose sum is σ = 244468666644. Its totient is φ = 244211598000.

The previous prime is 244340132291. The next prime is 244340132353. The reversal of 244340132321 is 123231043442.

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 22211729296 + 222128403025 = 149036^2 + 471305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244340132321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (244340132521) 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, 64264310 + ... + 64268111.

It is an arithmetic number, because the mean of its divisors is an integer number (61117166661).

Almost surely, 2^244340132321 is an apocalyptic number.

It is an amenable number.

244340132321 is a deficient number, since it is larger than the sum of its proper divisors (128534323).

244340132321 is a wasteful number, since it uses less digits than its factorization.

244340132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128534322.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 244340132321 its reverse (123231043442), we get a palindrome (367571175763).

The spelling of 244340132321 in words is "two hundred forty-four billion, three hundred forty million, one hundred thirty-two thousand, three hundred twenty-one".