123100008 has 32 divisors (see below), whose sum is σ = 317679360. Its totient is φ = 39709440.

The previous prime is 123099997. The next prime is 123100051. The reversal of 123100008 is 800001321.

It is a happy number.

It is a super-2 number, since 2×123100008² = 30307223939200128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123100008.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81985 + ... + 83472.

It is an arithmetic number, because the mean of its divisors is an integer number (9927480).

Almost surely, 2^123100008 is an apocalyptic number.

It is an amenable number.

123100008 is an abundant number, since it is smaller than the sum of its proper divisors (194579352).

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

123100008 is a wasteful number, since it uses less digits than its factorization.

123100008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165497 (or 165493 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 123100008 is about 11095.0442991455. The cubic root of 123100008 is about 497.4537323874.

Adding to 123100008 its reverse (800001321), we get a palindrome (923101329).

The spelling of 123100008 in words is "one hundred twenty-three million, one hundred thousand, eight".