123611112 has 48 divisors (see below), whose sum is σ = 352404000. Its totient is φ = 39034656.

The previous prime is 123611101. The next prime is 123611113. The reversal of 123611112 is 211116321.

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

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is not an unprimeable number, because it can be changed into a prime (123611113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43812 + ... + 46547.

It is an arithmetic number, because the mean of its divisors is an integer number (7341750).

Almost surely, 2^123611112 is an apocalyptic number.

123611112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123611112 is an abundant number, since it is smaller than the sum of its proper divisors (228792888).

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

123611112 is a wasteful number, since it uses less digits than its factorization.

123611112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90390 (or 90383 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 123611112 is about 11118.0534267470. The cubic root of 123611112 is about 498.1412479777.

Adding to 123611112 its reverse (211116321), we get a palindrome (334727433).

The spelling of 123611112 in words is "one hundred twenty-three million, six hundred eleven thousand, one hundred twelve".