11443080681 has 96 divisors (see below), whose sum is σ = 19596245760. Its totient is φ = 6629382144.

The previous prime is 11443080659. The next prime is 11443080703. The reversal of 11443080681 is 18608034411.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11443080659) and next prime (11443080703).

It is not a de Polignac number, because 11443080681 - 2³¹ = 9295597033 is a prime.

It is a super-2 number, since 2×11443080681² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11443082681) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2753301 + ... + 2757453.

It is an arithmetic number, because the mean of its divisors is an integer number (204127560).

Almost surely, 2^11443080681 is an apocalyptic number.

It is an amenable number.

11443080681 is a deficient number, since it is larger than the sum of its proper divisors (8153165079).

11443080681 is a wasteful number, since it uses less digits than its factorization.

11443080681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4237 (or 4225 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The spelling of 11443080681 in words is "eleven billion, four hundred forty-three million, eighty thousand, six hundred eighty-one".