11520321405216 has 144 divisors (see below), whose sum is σ = 33651505060992. Its totient is φ = 3430368299520.

The previous prime is 11520321405193. The next prime is 11520321405277. The reversal of 11520321405216 is 61250412302511.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3603496 + ... + 6002151.

It is an arithmetic number, because the mean of its divisors is an integer number (233691007368).

Almost surely, 2^{11520321405216} is an apocalyptic number.

11520321405216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11520321405216 is an abundant number, since it is smaller than the sum of its proper divisors (22131183655776).

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

11520321405216 is a wasteful number, since it uses less digits than its factorization.

11520321405216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9605735 (or 9605696 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 33.

Adding to 11520321405216 its reverse (61250412302511), we get a palindrome (72770733707727).

The spelling of 11520321405216 in words is "eleven trillion, five hundred twenty billion, three hundred twenty-one million, four hundred five thousand, two hundred sixteen".