111313211 has 4 divisors (see below), whose sum is σ = 112415424. Its totient is φ = 110211000.

The previous prime is 111313207. The next prime is 111313243. The reversal of 111313211 is 112313111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112313111 = 101 ⋅1112011.

It is a cyclic number.

It is not a de Polignac number, because 111313211 - 2² = 111313207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111313511) 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, 550955 + ... + 551156.

It is an arithmetic number, because the mean of its divisors is an integer number (28103856).

Almost surely, 2^111313211 is an apocalyptic number.

111313211 is a deficient number, since it is larger than the sum of its proper divisors (1102213).

111313211 is a wasteful number, since it uses less digits than its factorization.

111313211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102212.

The product of its digits is 18, while the sum is 14.

The square root of 111313211 is about 10550.5076181196. The cubic root of 111313211 is about 481.0411587021.

Adding to 111313211 its reverse (112313111), we get a palindrome (223626322).

The spelling of 111313211 in words is "one hundred eleven million, three hundred thirteen thousand, two hundred eleven".