11310657081 has 4 divisors (see below), whose sum is σ = 15080876112. Its totient is φ = 7540438052.

The previous prime is 11310656999. The next prime is 11310657097. The reversal of 11310657081 is 18075601311.

11310657081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18075601311 = 3 ⋅6025200437.

It is a cyclic number.

It is not a de Polignac number, because 11310657081 - 2³⁰ = 10236915257 is a prime.

It is a super-2 number, since 2×11310657081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11310657181) 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 3 ways as a sum of consecutive naturals, for example, 1885109511 + ... + 1885109516.

It is an arithmetic number, because the mean of its divisors is an integer number (3770219028).

Almost surely, 2^11310657081 is an apocalyptic number.

It is an amenable number.

11310657081 is a deficient number, since it is larger than the sum of its proper divisors (3770219031).

11310657081 is an equidigital number, since it uses as much as digits as its factorization.

11310657081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770219030.

The product of its (nonzero) digits is 5040, while the sum is 33.

The spelling of 11310657081 in words is "eleven billion, three hundred ten million, six hundred fifty-seven thousand, eighty-one".