123102110 has 16 divisors (see below), whose sum is σ = 221723136. Its totient is φ = 49209888.

The previous prime is 123102103. The next prime is 123102113. The reversal of 123102110 is 11201321.

It is a junction number, because it is equal to n+sod(n) for n = 123102091 and 123102100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123102113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19619 + ... + 25121.

It is an arithmetic number, because the mean of its divisors is an integer number (13857696).

Almost surely, 2^123102110 is an apocalyptic number.

123102110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123102110 is a deficient number, since it is larger than the sum of its proper divisors (98621026).

123102110 is a wasteful number, since it uses less digits than its factorization.

123102110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7747.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 123102110 is about 11095.1390257175. The cubic root of 123102110 is about 497.4565638028.

Adding to 123102110 its reverse (11201321), we get a palindrome (134303431).

The spelling of 123102110 in words is "one hundred twenty-three million, one hundred two thousand, one hundred ten".