111230140 has 96 divisors (see below), whose sum is σ = 278087040. Its totient is φ = 36578304.

The previous prime is 111230137. The next prime is 111230143. The reversal of 111230140 is 41032111.

It is an interprime number because it is at equal distance from previous prime (111230137) and next prime (111230143).

It is a self number, because there is not a number n which added to its sum of digits gives 111230140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111230143) 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, 564522 + ... + 564718.

It is an arithmetic number, because the mean of its divisors is an integer number (2896740).

Almost surely, 2^111230140 is an apocalyptic number.

111230140 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 111230140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139043520).

111230140 is an abundant number, since it is smaller than the sum of its proper divisors (166856900).

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

111230140 is a wasteful number, since it uses less digits than its factorization.

111230140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 111230140 is about 10546.5700585546. The cubic root of 111230140 is about 480.9214648686.

Adding to 111230140 its reverse (41032111), we get a palindrome (152262251).

The spelling of 111230140 in words is "one hundred eleven million, two hundred thirty thousand, one hundred forty".