12515230105 has 8 divisors (see below), whose sum is σ = 17163744192. Its totient is φ = 8581872048.

The previous prime is 12515230081. The next prime is 12515230129. The reversal of 12515230105 is 50103251521.

It is an interprime number because it is at equal distance from previous prime (12515230081) and next prime (12515230129).

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

It is a cyclic number.

It is not a de Polignac number, because 12515230105 - 2¹⁷ = 12515099033 is a prime.

It is a super-2 number, since 2×12515230105² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12515230105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178788967 + ... + 178789036.

It is an arithmetic number, because the mean of its divisors is an integer number (2145468024).

Almost surely, 2^12515230105 is an apocalyptic number.

It is an amenable number.

12515230105 is a deficient number, since it is larger than the sum of its proper divisors (4648514087).

12515230105 is an equidigital number, since it uses as much as digits as its factorization.

12515230105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357578015.

The product of its (nonzero) digits is 1500, while the sum is 25.

Adding to 12515230105 its reverse (50103251521), we get a palindrome (62618481626).

The spelling of 12515230105 in words is "twelve billion, five hundred fifteen million, two hundred thirty thousand, one hundred five".