12105311630 has 8 divisors (see below), whose sum is σ = 21789560952. Its totient is φ = 4842124648.

The previous prime is 12105311627. The next prime is 12105311641. The reversal of 12105311630 is 3611350121.

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

It is a junction number, because it is equal to n+sod(n) for n = 12105311596 and 12105311605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605265572 + ... + 605265591.

It is an arithmetic number, because the mean of its divisors is an integer number (2723695119).

Almost surely, 2^12105311630 is an apocalyptic number.

12105311630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12105311630 is a deficient number, since it is larger than the sum of its proper divisors (9684249322).

12105311630 is a wasteful number, since it uses less digits than its factorization.

12105311630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210531170.

The product of its (nonzero) digits is 540, while the sum is 23.

Adding to 12105311630 its reverse (3611350121), we get a palindrome (15716661751).

The spelling of 12105311630 in words is "twelve billion, one hundred five million, three hundred eleven thousand, six hundred thirty".