11520654231234 has 16 divisors (see below), whose sum is σ = 23043012485472. Its totient is φ = 3839934073248.

The previous prime is 11520654231209. The next prime is 11520654231263. The reversal of 11520654231234 is 43213245602511.

It is a junction number, because it is equal to n+sod(n) for n = 11520654231192 and 11520654231201.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 70913059 + ... + 71075334.

It is an arithmetic number, because the mean of its divisors is an integer number (1440188280342).

Almost surely, 2^{11520654231234} is an apocalyptic number.

11520654231234 is an abundant number, since it is smaller than the sum of its proper divisors (11522358254238).

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

11520654231234 is a wasteful number, since it uses less digits than its factorization.

11520654231234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142001921.

The product of its (nonzero) digits is 172800, while the sum is 39.

Adding to 11520654231234 its reverse (43213245602511), we get a palindrome (54733899833745).

The spelling of 11520654231234 in words is "eleven trillion, five hundred twenty billion, six hundred fifty-four million, two hundred thirty-one thousand, two hundred thirty-four".