12305114532520 has 16 divisors (see below), whose sum is σ = 27686507698260. Its totient is φ = 4922045812992.

The previous prime is 12305114532497. The next prime is 12305114532527. The reversal of 12305114532520 is 2523541150321.

It can be written as a sum of positive squares in 2 ways, for example, as 11842091442756 + 463023089764 = 3441234^2 + 680458^2 .

It is not an unprimeable number, because it can be changed into a prime (12305114532527) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 153813931617 + ... + 153813931696.

Almost surely, 2^{12305114532520} is an apocalyptic number.

12305114532520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12305114532520 is an abundant number, since it is smaller than the sum of its proper divisors (15381393165740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12305114532520 is a wasteful number, since it uses less digits than its factorization.

12305114532520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307627863324 (or 307627863320 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 12305114532520 its reverse (2523541150321), we get a palindrome (14828655682841).

The spelling of 12305114532520 in words is "twelve trillion, three hundred five billion, one hundred fourteen million, five hundred thirty-two thousand, five hundred twenty".