11304036405621 has 8 divisors (see below), whose sum is σ = 16746720600960. Its totient is φ = 7536024270396.

The previous prime is 11304036405611. The next prime is 11304036405667. The reversal of 11304036405621 is 12650463040311.

11304036405621 is a `hidden beast` number, since 1 + 1 + 3 + 0 + 4 + 0 + 3 + 640 + 5 + 6 + 2 + 1 = 666.

11304036405621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11304036405621 - 2¹⁰ = 11304036404597 is a prime.

It is a super-3 number, since 3×11304036405621³ (a number of 40 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11304036405601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209334007485 + ... + 209334007538.

It is an arithmetic number, because the mean of its divisors is an integer number (2093340075120).

Almost surely, 2^{11304036405621} is an apocalyptic number.

It is an amenable number.

11304036405621 is a deficient number, since it is larger than the sum of its proper divisors (5442684195339).

11304036405621 is an equidigital number, since it uses as much as digits as its factorization.

11304036405621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418668015032 (or 418668015026 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 11304036405621 its reverse (12650463040311), we get a palindrome (23954499445932).

The spelling of 11304036405621 in words is "eleven trillion, three hundred four billion, thirty-six million, four hundred five thousand, six hundred twenty-one".