12123655630 has 8 divisors (see below), whose sum is σ = 21822580152. Its totient is φ = 4849462248.

The previous prime is 12123655627. The next prime is 12123655637. The reversal of 12123655630 is 3655632121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12123655637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606182772 + ... + 606182791.

It is an arithmetic number, because the mean of its divisors is an integer number (2727822519).

Almost surely, 2^12123655630 is an apocalyptic number.

12123655630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123655630 is a deficient number, since it is larger than the sum of its proper divisors (9698924522).

12123655630 is a wasteful number, since it uses less digits than its factorization.

12123655630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212365570.

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 12123655630 in words is "twelve billion, one hundred twenty-three million, six hundred fifty-five thousand, six hundred thirty".