12105210034 has 8 divisors (see below), whose sum is σ = 18165461148. Its totient is φ = 6050056320.

The previous prime is 12105210011. The next prime is 12105210041. The reversal of 12105210034 is 43001250121.

It can be written as a sum of positive squares in 2 ways, for example, as 12056698809 + 48511225 = 109803^2 + 6965^2 .

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

It is a super-2 number, since 2×12105210034² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12105209993 and 12105210020.

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, 1268407 + ... + 1277914.

Almost surely, 2^12105210034 is an apocalyptic number.

12105210034 is a deficient number, since it is larger than the sum of its proper divisors (6060251114).

12105210034 is a wasteful number, since it uses less digits than its factorization.

12105210034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548700.

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 12105210034 its reverse (43001250121), we get a palindrome (55106460155).

The spelling of 12105210034 in words is "twelve billion, one hundred five million, two hundred ten thousand, thirty-four".