111230042251 has 4 divisors (see below), whose sum is σ = 111233156904. Its totient is φ = 111226927600.

The previous prime is 111230042243. The next prime is 111230042291. The reversal of 111230042251 is 152240032111.

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 111230042251 - 2³ = 111230042243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111230042201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1503130 + ... + 1575391.

It is an arithmetic number, because the mean of its divisors is an integer number (27808289226).

Almost surely, 2^111230042251 is an apocalyptic number.

111230042251 is a deficient number, since it is larger than the sum of its proper divisors (3114653).

111230042251 is an equidigital number, since it uses as much as digits as its factorization.

111230042251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3114652.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 111230042251 its reverse (152240032111), we get a palindrome (263470074362).

The spelling of 111230042251 in words is "one hundred eleven billion, two hundred thirty million, forty-two thousand, two hundred fifty-one".