12515111330 has 16 divisors (see below), whose sum is σ = 23712842880. Its totient is φ = 4742568432.

The previous prime is 12515111321. The next prime is 12515111341. The reversal of 12515111330 is 3311151521.

It is a junction number, because it is equal to n+sod(n) for n = 12515111296 and 12515111305.

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, 32934314 + ... + 32934693.

It is an arithmetic number, because the mean of its divisors is an integer number (1482052680).

Almost surely, 2^12515111330 is an apocalyptic number.

12515111330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12515111330 is a deficient number, since it is larger than the sum of its proper divisors (11197731550).

12515111330 is a wasteful number, since it uses less digits than its factorization.

12515111330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65869033.

The product of its (nonzero) digits is 450, while the sum is 23.

Adding to 12515111330 its reverse (3311151521), we get a palindrome (15826262851).

The spelling of 12515111330 in words is "twelve billion, five hundred fifteen million, one hundred eleven thousand, three hundred thirty".