123036680 has 32 divisors (see below), whose sum is σ = 298128600. Its totient is φ = 45428736.

The previous prime is 123036679. The next prime is 123036689. The reversal of 123036680 is 86630321.

It can be written as a sum of positive squares in 4 ways, for example, as 80604484 + 42432196 = 8978^2 + 6514^2 .

It is not an unprimeable number, because it can be changed into a prime (123036689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117785 + ... + 118824.

Almost surely, 2^123036680 is an apocalyptic number.

123036680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123036680 is an abundant number, since it is smaller than the sum of its proper divisors (175091920).

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

123036680 is a wasteful number, since it uses less digits than its factorization.

123036680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236633 (or 236629 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 123036680 is about 11092.1900452526. The cubic root of 123036680 is about 497.3684138074.

The spelling of 123036680 in words is "one hundred twenty-three million, thirty-six thousand, six hundred eighty".