11999410481 has 4 divisors (see below), whose sum is σ = 12004834932. Its totient is φ = 11993986032.

The previous prime is 11999410471. The next prime is 11999410519. The reversal of 11999410481 is 18401499911.

11999410481 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.

It can be written as a sum of positive squares in 2 ways, for example, as 5580837025 + 6418573456 = 74705^2 + 80116^2 .

It is a cyclic number.

It is not a de Polignac number, because 11999410481 - 2³⁰ = 10925668657 is a prime.

It is a super-2 number, since 2×11999410481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11999410421) 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, 2708906 + ... + 2713331.

It is an arithmetic number, because the mean of its divisors is an integer number (3001208733).

Almost surely, 2^11999410481 is an apocalyptic number.

It is an amenable number.

11999410481 is a deficient number, since it is larger than the sum of its proper divisors (5424451).

11999410481 is an equidigital number, since it uses as much as digits as its factorization.

11999410481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5424450.

The product of its (nonzero) digits is 93312, while the sum is 47.

The spelling of 11999410481 in words is "eleven billion, nine hundred ninety-nine million, four hundred ten thousand, four hundred eighty-one".