123112110 has 64 divisors (see below), whose sum is σ = 328458240. Its totient is φ = 29278080.

The previous prime is 123112103. The next prime is 123112151. The reversal of 123112110 is 11211321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13971 + ... + 21009.

It is an arithmetic number, because the mean of its divisors is an integer number (5132160).

Almost surely, 2^123112110 is an apocalyptic number.

123112110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123112110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164229120).

123112110 is an abundant number, since it is smaller than the sum of its proper divisors (205346130).

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

123112110 is a wasteful number, since it uses less digits than its factorization.

123112110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7113.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 123112110 is about 11095.5896643666. The cubic root of 123112110 is about 497.4700334635.

Adding to 123112110 its reverse (11211321), we get a palindrome (134323431).

The spelling of 123112110 in words is "one hundred twenty-three million, one hundred twelve thousand, one hundred ten".