111492281851 has 8 divisors (see below), whose sum is σ = 115967351808. Its totient is φ = 107072121000.

The previous prime is 111492281843. The next prime is 111492281863. The reversal of 111492281851 is 158182294111.

It is a happy number.

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 111492281851 - 2³ = 111492281843 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111492281798 and 111492281807.

It is not an unprimeable number, because it can be changed into a prime (111492281801) 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, 13723135 + ... + 13731256.

It is an arithmetic number, because the mean of its divisors is an integer number (14495918976).

Almost surely, 2^111492281851 is an apocalyptic number.

111492281851 is a deficient number, since it is larger than the sum of its proper divisors (4475069957).

111492281851 is a wasteful number, since it uses less digits than its factorization.

111492281851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27454553.

The product of its digits is 46080, while the sum is 43.

The spelling of 111492281851 in words is "one hundred eleven billion, four hundred ninety-two million, two hundred eighty-one thousand, eight hundred fifty-one".