12523116222530 has 16 divisors (see below), whose sum is σ = 22554616507704. Its totient is φ = 5006355976320.

The previous prime is 12523116222503. The next prime is 12523116222583. The reversal of 12523116222530 is 3522261132521.

It can be written as a sum of positive squares in 4 ways, for example, as 9777835064209 + 2745281158321 = 3126953^2 + 1656889^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361295891 + ... + 361330550.

Almost surely, 2^{12523116222530} is an apocalyptic number.

12523116222530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12523116222530 is a deficient number, since it is larger than the sum of its proper divisors (10031500285174).

12523116222530 is a wasteful number, since it uses less digits than its factorization.

12523116222530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722628181.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 12523116222530 in words is "twelve trillion, five hundred twenty-three billion, one hundred sixteen million, two hundred twenty-two thousand, five hundred thirty".