111020130 has 48 divisors (see below), whose sum is σ = 310859640. Its totient is φ = 27327744.

The previous prime is 111020111. The next prime is 111020131. The reversal of 111020130 is 31020111.

It can be written as a sum of positive squares in 4 ways, for example, as 102394161 + 8625969 = 10119^2 + 2937^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (111020131) 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, 46275 + ... + 48614.

Almost surely, 2^111020130 is an apocalyptic number.

111020130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111020130 is an abundant number, since it is smaller than the sum of its proper divisors (199839510).

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

111020130 is a wasteful number, since it uses less digits than its factorization.

111020130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94915 (or 94912 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 111020130 is about 10536.6090370669. The cubic root of 111020130 is about 480.6186034695.

Adding to 111020130 its reverse (31020111), we get a palindrome (142040241).

The spelling of 111020130 in words is "one hundred eleven million, twenty thousand, one hundred thirty".