111134421 has 12 divisors (see below), whose sum is σ = 164866572. Its totient is φ = 72086976.

The previous prime is 111134407. The next prime is 111134431. The reversal of 111134421 is 124431111.

111134421 is a `hidden beast` number, since 111 + 134 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 45037521 + 66096900 = 6711^2 + 8130^2 .

It is not a de Polignac number, because 111134421 - 2⁶ = 111134357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111134394 and 111134403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111134431) 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 11 ways as a sum of consecutive naturals, for example, 166536 + ... + 167201.

It is an arithmetic number, because the mean of its divisors is an integer number (13738881).

Almost surely, 2^111134421 is an apocalyptic number.

It is an amenable number.

111134421 is a deficient number, since it is larger than the sum of its proper divisors (53732151).

111134421 is a wasteful number, since it uses less digits than its factorization.

111134421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333780 (or 333777 counting only the distinct ones).

The product of its digits is 96, while the sum is 18.

The square root of 111134421 is about 10542.0311610240. The cubic root of 111134421 is about 480.7834730957.

Adding to 111134421 its reverse (124431111), we get a palindrome (235565532).

The spelling of 111134421 in words is "one hundred eleven million, one hundred thirty-four thousand, four hundred twenty-one".