111411345 has 32 divisors (see below), whose sum is σ = 188282880. Its totient is φ = 56099520.

The previous prime is 111411343. The next prime is 111411347. The reversal of 111411345 is 543114111.

It is an interprime number because it is at equal distance from previous prime (111411343) and next prime (111411347).

It is not a de Polignac number, because 111411345 - 2¹ = 111411343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111411341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122382 + ... + 123288.

It is an arithmetic number, because the mean of its divisors is an integer number (5883840).

Almost surely, 2^111411345 is an apocalyptic number.

111411345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

111411345 is a deficient number, since it is larger than the sum of its proper divisors (76871535).

111411345 is a wasteful number, since it uses less digits than its factorization.

111411345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1365.

The product of its digits is 240, while the sum is 21.

The square root of 111411345 is about 10555.1572702637. The cubic root of 111411345 is about 481.1824795360.

Adding to 111411345 its reverse (543114111), we get a palindrome (654525456).

The spelling of 111411345 in words is "one hundred eleven million, four hundred eleven thousand, three hundred forty-five".