111240560 has 20 divisors (see below), whose sum is σ = 258634488. Its totient is φ = 44496192.

The previous prime is 111240551. The next prime is 111240589. The reversal of 111240560 is 65042111.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×111240560² = 24748924378227200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 695174 + ... + 695333.

Almost surely, 2^111240560 is an apocalyptic number.

111240560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111240560 is an abundant number, since it is smaller than the sum of its proper divisors (147393928).

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

111240560 is a wasteful number, since it uses less digits than its factorization.

111240560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390520 (or 1390514 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 111240560 is about 10547.0640464539. The cubic root of 111240560 is about 480.9364819170.

Adding to 111240560 its reverse (65042111), we get a palindrome (176282671).

The spelling of 111240560 in words is "one hundred eleven million, two hundred forty thousand, five hundred sixty".