11310521551 has 8 divisors (see below), whose sum is σ = 13170203424. Its totient is φ = 9511812960.

The previous prime is 11310521513. The next prime is 11310521557. The reversal of 11310521551 is 15512501311.

11310521551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11310521551 - 2¹¹ = 11310519503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11310521557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15242920 + ... + 15243661.

It is an arithmetic number, because the mean of its divisors is an integer number (1646275428).

Almost surely, 2^11310521551 is an apocalyptic number.

11310521551 is a deficient number, since it is larger than the sum of its proper divisors (1859681873).

11310521551 is an equidigital number, since it uses as much as digits as its factorization.

11310521551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30486641.

The product of its (nonzero) digits is 750, while the sum is 25.

The spelling of 11310521551 in words is "eleven billion, three hundred ten million, five hundred twenty-one thousand, five hundred fifty-one".