244142121013 has 4 divisors (see below), whose sum is σ = 279019566880. Its totient is φ = 209264675148.

The previous prime is 244142121007. The next prime is 244142121037. The reversal of 244142121013 is 310121241442.

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 not a de Polignac number, because 244142121013 - 2²¹ = 244140023861 is a prime.

It is a super-2 number, since 2×244142121013² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (244142521013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17438722923 + ... + 17438722936.

It is an arithmetic number, because the mean of its divisors is an integer number (69754891720).

Almost surely, 2^244142121013 is an apocalyptic number.

It is an amenable number.

244142121013 is a deficient number, since it is larger than the sum of its proper divisors (34877445867).

244142121013 is an equidigital number, since it uses as much as digits as its factorization.

244142121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34877445866.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 244142121013 its reverse (310121241442), we get a palindrome (554263362455).

The spelling of 244142121013 in words is "two hundred forty-four billion, one hundred forty-two million, one hundred twenty-one thousand, thirteen".