111026340 has 72 divisors (see below), whose sum is σ = 337679160. Its totient is φ = 29528064.

The previous prime is 111026339. The next prime is 111026341. The reversal of 111026340 is 43620111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111026339) and next prime (111026341).

It can be written as a sum of positive squares in 4 ways, for example, as 41370624 + 69655716 = 6432^2 + 8346^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (111026341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 103326 + ... + 104394.

Almost surely, 2^111026340 is an apocalyptic number.

111026340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111026340 is an abundant number, since it is smaller than the sum of its proper divisors (226652820).

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

111026340 is a wasteful number, since it uses less digits than its factorization.

111026340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 111026340 is about 10536.9037197841. The cubic root of 111026340 is about 480.6275645647.

Adding to 111026340 its reverse (43620111), we get a palindrome (154646451).

The spelling of 111026340 in words is "one hundred eleven million, twenty-six thousand, three hundred forty".