111311214 has 64 divisors (see below), whose sum is σ = 269982720. Its totient is φ = 29905920.

The previous prime is 111311197. The next prime is 111311231. The reversal of 111311214 is 412113111.

It is an interprime number because it is at equal distance from previous prime (111311197) and next prime (111311231).

It is a junction number, because it is equal to n+sod(n) for n = 111311193 and 111311202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57982 + ... + 59870.

It is an arithmetic number, because the mean of its divisors is an integer number (4218480).

Almost surely, 2^111311214 is an apocalyptic number.

111311214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 111311214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134991360).

111311214 is an abundant number, since it is smaller than the sum of its proper divisors (158671506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111311214 is a wasteful number, since it uses less digits than its factorization.

111311214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1985.

The product of its digits is 24, while the sum is 15.

The square root of 111311214 is about 10550.4129776990. The cubic root of 111311214 is about 481.0382819997.

Adding to 111311214 its reverse (412113111), we get a palindrome (523424325).

The spelling of 111311214 in words is "one hundred eleven million, three hundred eleven thousand, two hundred fourteen".