11021442061243 has 4 divisors (see below), whose sum is σ = 11095411471200. Its totient is φ = 10947472651288.

The previous prime is 11021442061213. The next prime is 11021442061291. The reversal of 11021442061243 is 34216024412011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11021442061243 - 2²⁵ = 11021408506811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11021442061213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36984704755 + ... + 36984705052.

It is an arithmetic number, because the mean of its divisors is an integer number (2773852867800).

Almost surely, 2^{11021442061243} is an apocalyptic number.

11021442061243 is a deficient number, since it is larger than the sum of its proper divisors (73969409957).

11021442061243 is an equidigital number, since it uses as much as digits as its factorization.

11021442061243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73969409956.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 11021442061243 its reverse (34216024412011), we get a palindrome (45237466473254).

The spelling of 11021442061243 in words is "eleven trillion, twenty-one billion, four hundred forty-two million, sixty-one thousand, two hundred forty-three".