11111243443 has 8 divisors (see below), whose sum is σ = 11645422848. Its totient is φ = 10581320904.

The previous prime is 11111243431. The next prime is 11111243467. The reversal of 11111243443 is 34434211111.

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 11111243443 - 2¹³ = 11111235251 is a prime.

It is a super-2 number, since 2×11111243443² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111243413) 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, 1058871 + ... + 1069312.

It is an arithmetic number, because the mean of its divisors is an integer number (1455677856).

Almost surely, 2^11111243443 is an apocalyptic number.

11111243443 is a deficient number, since it is larger than the sum of its proper divisors (534179405).

11111243443 is a wasteful number, since it uses less digits than its factorization.

11111243443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2128433.

The product of its digits is 1152, while the sum is 25.

Adding to 11111243443 its reverse (34434211111), we get a palindrome (45545454554).

The spelling of 11111243443 in words is "eleven billion, one hundred eleven million, two hundred forty-three thousand, four hundred forty-three".