11513204455 has 16 divisors (see below), whose sum is σ = 13901312160. Its totient is φ = 9153758592.

The previous prime is 11513204453. The next prime is 11513204471. The reversal of 11513204455 is 55440231511.

It is a cyclic number.

It is not a de Polignac number, because 11513204455 - 2¹ = 11513204453 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11513204453) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 539376 + ... + 560314.

It is an arithmetic number, because the mean of its divisors is an integer number (868832010).

Almost surely, 2^11513204455 is an apocalyptic number.

11513204455 is a deficient number, since it is larger than the sum of its proper divisors (2388107705).

11513204455 is a wasteful number, since it uses less digits than its factorization.

11513204455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21618.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 11513204455 its reverse (55440231511), we get a palindrome (66953435966).

The spelling of 11513204455 in words is "eleven billion, five hundred thirteen million, two hundred four thousand, four hundred fifty-five".