111111413 has 16 divisors (see below), whose sum is σ = 133837056. Its totient is φ = 90182400.

The previous prime is 111111397. The next prime is 111111421. The reversal of 111111413 is 314111111.

It is a happy number.

It is not a de Polignac number, because 111111413 - 2⁴ = 111111397 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 (111111433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12845 + ... + 19677.

It is an arithmetic number, because the mean of its divisors is an integer number (8364816).

Almost surely, 2^111111413 is an apocalyptic number.

It is an amenable number.

111111413 is a deficient number, since it is larger than the sum of its proper divisors (22725643).

111111413 is a wasteful number, since it uses less digits than its factorization.

111111413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6964.

The product of its digits is 12, while the sum is 14.

The square root of 111111413 is about 10540.9398537322. The cubic root of 111111413 is about 480.7502921679.

Adding to 111111413 its reverse (314111111), we get a palindrome (425222524).

The spelling of 111111413 in words is "one hundred eleven million, one hundred eleven thousand, four hundred thirteen".