10442043243121 has 6 divisors (see below), whose sum is σ = 12146866629810. Its totient is φ = 8950322779776.

The previous prime is 10442043243097. The next prime is 10442043243131. The reversal of 10442043243121 is 12134234024401.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10416013938225 + 26029304896 = 3227385^2 + 161336^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10442043243121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10442043243131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106551461616 + ... + 106551461713.

It is an arithmetic number, because the mean of its divisors is an integer number (2024477771635).

Almost surely, 2^{10442043243121} is an apocalyptic number.

It is an amenable number.

10442043243121 is a deficient number, since it is larger than the sum of its proper divisors (1704823386689).

10442043243121 is an equidigital number, since it uses as much as digits as its factorization.

10442043243121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213102923343 (or 213102923336 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 10442043243121 its reverse (12134234024401), we get a palindrome (22576277267522).

The spelling of 10442043243121 in words is "ten trillion, four hundred forty-two billion, forty-three million, two hundred forty-three thousand, one hundred twenty-one".