111145719851 has 8 divisors (see below), whose sum is σ = 117012317520. Its totient is φ = 105280804512.

The previous prime is 111145719829. The next prime is 111145719859. The reversal of 111145719851 is 158917541111.

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 111145719851 - 2¹⁴ = 111145703467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111145719859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283820 + ... + 550313.

It is an arithmetic number, because the mean of its divisors is an integer number (14626539690).

Almost surely, 2^111145719851 is an apocalyptic number.

111145719851 is a deficient number, since it is larger than the sum of its proper divisors (5866597669).

111145719851 is an equidigital number, since it uses as much as digits as its factorization.

111145719851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841165.

The product of its digits is 50400, while the sum is 44.

The spelling of 111145719851 in words is "one hundred eleven billion, one hundred forty-five million, seven hundred nineteen thousand, eight hundred fifty-one".