111134420442 has 24 divisors (see below), whose sum is σ = 249709439616. Its totient is φ = 37044806652.

The previous prime is 111134420381. The next prime is 111134420459. The reversal of 111134420442 is 244024431111.

111134420442 is a `hidden beast` number, since 1 + 111 + 344 + 204 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 114335338 + ... + 114336309.

It is an arithmetic number, because the mean of its divisors is an integer number (10404559984).

Almost surely, 2^111134420442 is an apocalyptic number.

111134420442 is an abundant number, since it is smaller than the sum of its proper divisors (138575019174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111134420442 is an equidigital number, since it uses as much as digits as its factorization.

111134420442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228671664 (or 228671652 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 111134420442 its reverse (244024431111), we get a palindrome (355158851553).

The spelling of 111134420442 in words is "one hundred eleven billion, one hundred thirty-four million, four hundred twenty thousand, four hundred forty-two".