11111120243 has 8 divisors (see below), whose sum is σ = 11139282000. Its totient is φ = 11082994048.

The previous prime is 11111120231. The next prime is 11111120249. The reversal of 11111120243 is 34202111111.

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

It is a cyclic number.

It is not a de Polignac number, because 11111120243 - 2¹² = 11111116147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111120249) 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, 683255 + ... + 699327.

It is an arithmetic number, because the mean of its divisors is an integer number (1392410250).

Almost surely, 2^11111120243 is an apocalyptic number.

11111120243 is a deficient number, since it is larger than the sum of its proper divisors (28161757).

11111120243 is a wasteful number, since it uses less digits than its factorization.

11111120243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17781.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11111120243 its reverse (34202111111), we get a palindrome (45313231354).

The spelling of 11111120243 in words is "eleven billion, one hundred eleven million, one hundred twenty thousand, two hundred forty-three".