111441413 has 4 divisors (see below), whose sum is σ = 111462528. Its totient is φ = 111420300.

The previous prime is 111441401. The next prime is 111441427. The reversal of 111441413 is 314144111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 111441413 - 2¹² = 111437317 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111441493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5138 + ... + 15788.

It is an arithmetic number, because the mean of its divisors is an integer number (27865632).

Almost surely, 2^111441413 is an apocalyptic number.

It is an amenable number.

111441413 is a deficient number, since it is larger than the sum of its proper divisors (21115).

111441413 is a wasteful number, since it uses less digits than its factorization.

111441413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21114.

The product of its digits is 192, while the sum is 20.

The square root of 111441413 is about 10556.5815016036. The cubic root of 111441413 is about 481.2257632591.

Adding to 111441413 its reverse (314144111), we get a palindrome (425585524).

The spelling of 111441413 in words is "one hundred eleven million, four hundred forty-one thousand, four hundred thirteen".