11520205617012 has 24 divisors (see below), whose sum is σ = 26882430705312. Its totient is φ = 3839789834400.

The previous prime is 11520205616993. The next prime is 11520205617029. The reversal of 11520205617012 is 21071650202511.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 34665814 + ... + 34996557.

It is an arithmetic number, because the mean of its divisors is an integer number (1120101279388).

Almost surely, 2^{11520205617012} is an apocalyptic number.

11520205617012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11520205617012 is an abundant number, since it is smaller than the sum of its proper divisors (15362225088300).

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

11520205617012 is a wasteful number, since it uses less digits than its factorization.

11520205617012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69676159 (or 69676157 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 33.

Adding to 11520205617012 its reverse (21071650202511), we get a palindrome (32591855819523).

The spelling of 11520205617012 in words is "eleven trillion, five hundred twenty billion, two hundred five million, six hundred seventeen thousand, twelve".