111204345 has 32 divisors (see below), whose sum is σ = 204122880. Its totient is φ = 50641920.

The previous prime is 111204329. The next prime is 111204367. The reversal of 111204345 is 543402111.

It is not a de Polignac number, because 111204345 - 2⁴ = 111204329 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon 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, 27621 + ... + 31389.

It is an arithmetic number, because the mean of its divisors is an integer number (6378840).

Almost surely, 2^111204345 is an apocalyptic number.

111204345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111204345 is a deficient number, since it is larger than the sum of its proper divisors (92918535).

111204345 is a wasteful number, since it uses less digits than its factorization.

111204345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4065.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 111204345 is about 10545.3470782142. The cubic root of 111204345 is about 480.8842857123.

Adding to 111204345 its reverse (543402111), we get a palindrome (654606456).

The spelling of 111204345 in words is "one hundred eleven million, two hundred four thousand, three hundred forty-five".