11647121334 has 48 divisors (see below), whose sum is σ = 24656046192. Its totient is φ = 3667378176.

The previous prime is 11647121323. The next prime is 11647121351. The reversal of 11647121334 is 43312174611.

It is a junction number, because it is equal to n+sod(n) for n = 11647121295 and 11647121304.

It is a congruent number.

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, 756982 + ... + 772214.

It is an arithmetic number, because the mean of its divisors is an integer number (513667629).

Almost surely, 2^11647121334 is an apocalyptic number.

11647121334 is an abundant number, since it is smaller than the sum of its proper divisors (13008924858).

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

11647121334 is a wasteful number, since it uses less digits than its factorization.

11647121334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15629 (or 15610 counting only the distinct ones).

The product of its digits is 12096, while the sum is 33.

Adding to 11647121334 its reverse (43312174611), we get a palindrome (54959295945).

The spelling of 11647121334 in words is "eleven billion, six hundred forty-seven million, one hundred twenty-one thousand, three hundred thirty-four".