11800399799241 has 9 divisors (see below), whose sum is σ = 17045036817991. Its totient is φ = 7866926329152.

The previous prime is 11800399799219. The next prime is 11800399799273. The reversal of 11800399799241 is 14299799300811.

It is a happy number.

The square root of 11800399799241 is 3435171.

It is a perfect power (a square), and thus also a powerful number.

11800399799241 is a `hidden beast` number, since 11 + 80 + 0 + 399 + 79 + 92 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9253490222025 + 2546909577216 = 3041955^2 + 1595904^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 11800399799241 - 2²¹ = 11800397702089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11800399799641) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9732985 + ... + 10878041.

Almost surely, 2^{11800399799241} is an apocalyptic number.

11800399799241 is the 3435171-st square number.

11800399799241 is the 1717586-th centered octagonal number.

It is an amenable number.

11800399799241 is a deficient number, since it is larger than the sum of its proper divisors (5244637018750).

11800399799241 is an frugal number, since it uses more digits than its factorization.

11800399799241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2290120 (or 1145060 counting only the distinct ones).

The product of its (nonzero) digits is 8817984, while the sum is 63.

The spelling of 11800399799241 in words is "eleven trillion, eight hundred billion, three hundred ninety-nine million, seven hundred ninety-nine thousand, two hundred forty-one".