123113208 has 32 divisors (see below), whose sum is σ = 316103760. Its totient is φ = 39928320.

The previous prime is 123113203. The next prime is 123113209. The reversal of 123113208 is 802311321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123113203) 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, 68433 + ... + 70208.

Almost surely, 2^123113208 is an apocalyptic number.

It is an amenable number.

123113208 is an abundant number, since it is smaller than the sum of its proper divisors (192990552).

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

123113208 is a wasteful number, since it uses less digits than its factorization.

123113208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138687 (or 138683 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 123113208 is about 11095.6391433752. The cubic root of 123113208 is about 497.4715123878.

Adding to 123113208 its reverse (802311321), we get a palindrome (925424529).

It can be divided in two parts, 123113 and 208, that added together give a palindrome (123321).

The spelling of 123113208 in words is "one hundred twenty-three million, one hundred thirteen thousand, two hundred eight".