11521245214255 has 16 divisors (see below), whose sum is σ = 15800713712640. Its totient is φ = 7900208008992.

The previous prime is 11521245214247. The next prime is 11521245214321. The reversal of 11521245214255 is 55241254212511.

It is a cyclic number.

It is not a de Polignac number, because 11521245214255 - 2³ = 11521245214247 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2356602 + ... + 5347528.

It is an arithmetic number, because the mean of its divisors is an integer number (987544607040).

Almost surely, 2^{11521245214255} is an apocalyptic number.

11521245214255 is a deficient number, since it is larger than the sum of its proper divisors (4279468498385).

11521245214255 is a wasteful number, since it uses less digits than its factorization.

11521245214255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100998.

The product of its digits is 160000, while the sum is 40.

Adding to 11521245214255 its reverse (55241254212511), we get a palindrome (66762499426766).

The spelling of 11521245214255 in words is "eleven trillion, five hundred twenty-one billion, two hundred forty-five million, two hundred fourteen thousand, two hundred fifty-five".