244402132321 has 4 divisors (see below), whose sum is σ = 244403957952. Its totient is φ = 244400306692.

The previous prime is 244402132291. The next prime is 244402132327. The reversal of 244402132321 is 123231204442.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244402132321 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 244402132321.

It is not an unprimeable number, because it can be changed into a prime (244402132327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 694621 + ... + 985546.

It is an arithmetic number, because the mean of its divisors is an integer number (61100989488).

Almost surely, 2^244402132321 is an apocalyptic number.

It is an amenable number.

244402132321 is a deficient number, since it is larger than the sum of its proper divisors (1825631).

244402132321 is a wasteful number, since it uses less digits than its factorization.

244402132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1825630.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 244402132321 its reverse (123231204442), we get a palindrome (367633336763).

The spelling of 244402132321 in words is "two hundred forty-four billion, four hundred two million, one hundred thirty-two thousand, three hundred twenty-one".