12105244534 has 8 divisors (see below), whose sum is σ = 18158477688. Its totient is φ = 6052418640.

The previous prime is 12105244511. The next prime is 12105244537. The reversal of 12105244534 is 43544250121.

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 = 12105244496 and 12105244505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12105244537) 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, 11472 + ... + 156019.

It is an arithmetic number, because the mean of its divisors is an integer number (2269809711).

Almost surely, 2^12105244534 is an apocalyptic number.

12105244534 is a deficient number, since it is larger than the sum of its proper divisors (6053233154).

12105244534 is a wasteful number, since it uses less digits than its factorization.

12105244534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203630.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 12105244534 its reverse (43544250121), we get a palindrome (55649494655).

The spelling of 12105244534 in words is "twelve billion, one hundred five million, two hundred forty-four thousand, five hundred thirty-four".