111311000443 has 4 divisors (see below), whose sum is σ = 111925978528. Its totient is φ = 110696022360.

The previous prime is 111311000441. The next prime is 111311000467. The reversal of 111311000443 is 344000113111.

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 111311000443 - 2¹ = 111311000441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111311000443.

It is not an unprimeable number, because it can be changed into a prime (111311000441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307488771 + ... + 307489132.

It is an arithmetic number, because the mean of its divisors is an integer number (27981494632).

Almost surely, 2^111311000443 is an apocalyptic number.

111311000443 is a deficient number, since it is larger than the sum of its proper divisors (614978085).

111311000443 is an equidigital number, since it uses as much as digits as its factorization.

111311000443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614978084.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 111311000443 its reverse (344000113111), we get a palindrome (455311113554).

The spelling of 111311000443 in words is "one hundred eleven billion, three hundred eleven million, four hundred forty-three", and thus it is an aban number.