12515351243235 has 32 divisors (see below), whose sum is σ = 21653593961472. Its totient is φ = 6148551360000.

The previous prime is 12515351243233. The next prime is 12515351243249. The reversal of 12515351243235 is 53234215351521.

12515351243235 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12515351243235 - 2¹ = 12515351243233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12515351243233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 522113641 + ... + 522137610.

It is an arithmetic number, because the mean of its divisors is an integer number (676674811296).

Almost surely, 2^{12515351243235} is an apocalyptic number.

12515351243235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12515351243235 is a deficient number, since it is larger than the sum of its proper divisors (9138242718237).

12515351243235 is a wasteful number, since it uses less digits than its factorization.

12515351243235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044251323.

The product of its digits is 540000, while the sum is 42.

Adding to 12515351243235 its reverse (53234215351521), we get a palindrome (65749566594756).

The spelling of 12515351243235 in words is "twelve trillion, five hundred fifteen billion, three hundred fifty-one million, two hundred forty-three thousand, two hundred thirty-five".