111161230 has 16 divisors (see below), whose sum is σ = 201962160. Its totient is φ = 44048512.

The previous prime is 111161227. The next prime is 111161233. The reversal of 111161230 is 32161111.

It is an interprime number because it is at equal distance from previous prime (111161227) and next prime (111161233).

It is a super-2 number, since 2×111161230² = 24713638110225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111161233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50875 + ... + 53014.

It is an arithmetic number, because the mean of its divisors is an integer number (12622635).

Almost surely, 2^111161230 is an apocalyptic number.

111161230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111161230 is a deficient number, since it is larger than the sum of its proper divisors (90800930).

111161230 is a wasteful number, since it uses less digits than its factorization.

111161230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104003.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 111161230 is about 10543.3026135078. The cubic root of 111161230 is about 480.8221298494.

The spelling of 111161230 in words is "one hundred eleven million, one hundred sixty-one thousand, two hundred thirty".