111243480 has 128 divisors (see below), whose sum is σ = 355622400. Its totient is φ = 27758592.

The previous prime is 111243467. The next prime is 111243481. The reversal of 111243480 is 84342111.

It is a super-2 number, since 2×111243480² = 24750223685020800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 111243480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111243481) 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, 220909 + ... + 221411.

It is an arithmetic number, because the mean of its divisors is an integer number (2778300).

Almost surely, 2^111243480 is an apocalyptic number.

111243480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111243480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177811200).

111243480 is an abundant number, since it is smaller than the sum of its proper divisors (244378920).

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

111243480 is a wasteful number, since it uses less digits than its factorization.

111243480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 111243480 is about 10547.2024726939. The cubic root of 111243480 is about 480.9406899812.

Adding to 111243480 its reverse (84342111), we get a palindrome (195585591).

The spelling of 111243480 in words is "one hundred eleven million, two hundred forty-three thousand, four hundred eighty".