111128413 has 8 divisors (see below), whose sum is σ = 121310496. Its totient is φ = 100959600.

The previous prime is 111128401. The next prime is 111128461. The reversal of 111128413 is 314821111.

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 111128413 - 2¹³ = 111120221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111128483) 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 7 ways as a sum of consecutive naturals, for example, 24070 + ... + 28312.

It is an arithmetic number, because the mean of its divisors is an integer number (15163812).

Almost surely, 2^111128413 is an apocalyptic number.

It is an amenable number.

111128413 is a deficient number, since it is larger than the sum of its proper divisors (10182083).

111128413 is a wasteful number, since it uses less digits than its factorization.

111128413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6635.

The product of its digits is 192, while the sum is 22.

The square root of 111128413 is about 10541.7462025985. The cubic root of 111128413 is about 480.7748091158.

Adding to 111128413 its reverse (314821111), we get a palindrome (425949524).

The spelling of 111128413 in words is "one hundred eleven million, one hundred twenty-eight thousand, four hundred thirteen".