11311395520 has 28 divisors (see below), whose sum is σ = 26935261344. Its totient is φ = 4524558080.

The previous prime is 11311395503. The next prime is 11311395527. The reversal of 11311395520 is 2559311311.

It is not an unprimeable number, because it can be changed into a prime (11311395527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17673736 + ... + 17674375.

Almost surely, 2^11311395520 is an apocalyptic number.

11311395520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11311395520 is an abundant number, since it is smaller than the sum of its proper divisors (15623865824).

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

11311395520 is an equidigital number, since it uses as much as digits as its factorization.

11311395520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35348128 (or 35348118 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 31.

The spelling of 11311395520 in words is "eleven billion, three hundred eleven million, three hundred ninety-five thousand, five hundred twenty".