244355145311021 has 8 divisors (see below), whose sum is σ = 252240031259904. Its totient is φ = 236470413231360.

The previous prime is 244355145311009. The next prime is 244355145311047. The reversal of 244355145311021 is 120113541553442.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-244355145311021 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 244355145311021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244355145311071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35235611 + ... + 41596376.

It is an arithmetic number, because the mean of its divisors is an integer number (31530003907488).

Almost surely, 2^{244355145311021} is an apocalyptic number.

It is an amenable number.

244355145311021 is a deficient number, since it is larger than the sum of its proper divisors (7884885948883).

244355145311021 is a wasteful number, since it uses less digits than its factorization.

244355145311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76934611.

The product of its (nonzero) digits is 288000, while the sum is 41.

Adding to 244355145311021 its reverse (120113541553442), we get a palindrome (364468686864463).

The spelling of 244355145311021 in words is "two hundred forty-four trillion, three hundred fifty-five billion, one hundred forty-five million, three hundred eleven thousand, twenty-one".