11520321153 has 32 divisors (see below), whose sum is σ = 17401208832. Its totient is φ = 6716227200.

The previous prime is 11520321149. The next prime is 11520321161. The reversal of 11520321153 is 35112302511.

It is not a de Polignac number, because 11520321153 - 2² = 11520321149 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11520321143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 137125 + ... + 204557.

It is an arithmetic number, because the mean of its divisors is an integer number (543787776).

Almost surely, 2^11520321153 is an apocalyptic number.

It is an amenable number.

11520321153 is a deficient number, since it is larger than the sum of its proper divisors (5880887679).

11520321153 is a wasteful number, since it uses less digits than its factorization.

11520321153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67645.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 11520321153 its reverse (35112302511), we get a palindrome (46632623664).

The spelling of 11520321153 in words is "eleven billion, five hundred twenty million, three hundred twenty-one thousand, one hundred fifty-three".