12542230505115 has 96 divisors (see below), whose sum is σ = 23038213685760. Its totient is φ = 6544430401536.

The previous prime is 12542230505083. The next prime is 12542230505173. The reversal of 12542230505115 is 51150503224521.

12542230505115 is a `hidden beast` number, since 1 + 2 + 5 + 4 + 2 + 2 + 30 + 505 + 115 = 666.

It is not a de Polignac number, because 12542230505115 - 2⁵ = 12542230505083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12542230505115.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9783291 + ... + 10990779.

It is an arithmetic number, because the mean of its divisors is an integer number (239981392560).

Almost surely, 2^{12542230505115} is an apocalyptic number.

12542230505115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12542230505115 is a deficient number, since it is larger than the sum of its proper divisors (10495983180645).

12542230505115 is a wasteful number, since it uses less digits than its factorization.

12542230505115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207695 (or 1207683 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 12542230505115 its reverse (51150503224521), we get a palindrome (63692733729636).

The spelling of 12542230505115 in words is "twelve trillion, five hundred forty-two billion, two hundred thirty million, five hundred five thousand, one hundred fifteen".