11385280801 has 4 divisors (see below), whose sum is σ = 11389354132. Its totient is φ = 11381207472.

The previous prime is 11385280747. The next prime is 11385280843. The reversal of 11385280801 is 10808258311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10808258311 = 5281 ⋅2046631.

It can be written as a sum of positive squares in 2 ways, for example, as 7670256400 + 3715024401 = 87580^2 + 60951^2 .

It is a cyclic number.

It is not a de Polignac number, because 11385280801 - 2⁹ = 11385280289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11385280891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2032470 + ... + 2038063.

It is an arithmetic number, because the mean of its divisors is an integer number (2847338533).

Almost surely, 2^11385280801 is an apocalyptic number.

It is an amenable number.

11385280801 is a deficient number, since it is larger than the sum of its proper divisors (4073331).

11385280801 is an equidigital number, since it uses as much as digits as its factorization.

11385280801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4073330.

The product of its (nonzero) digits is 15360, while the sum is 37.

The spelling of 11385280801 in words is "eleven billion, three hundred eighty-five million, two hundred eighty thousand, eight hundred one".