11161133241 has 4 divisors (see below), whose sum is σ = 14881510992. Its totient is φ = 7440755492.

The previous prime is 11161133239. The next prime is 11161133279. The reversal of 11161133241 is 14233116111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14233116111 = 3 ⋅4744372037.

It is a cyclic number.

It is not a de Polignac number, because 11161133241 - 2¹ = 11161133239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11161133231) 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, 1860188871 + ... + 1860188876.

It is an arithmetic number, because the mean of its divisors is an integer number (3720377748).

Almost surely, 2^11161133241 is an apocalyptic number.

It is an amenable number.

11161133241 is a deficient number, since it is larger than the sum of its proper divisors (3720377751).

11161133241 is an equidigital number, since it uses as much as digits as its factorization.

11161133241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3720377750.

The product of its digits is 432, while the sum is 24.

Adding to 11161133241 its reverse (14233116111), we get a palindrome (25394249352).

The spelling of 11161133241 in words is "eleven billion, one hundred sixty-one million, one hundred thirty-three thousand, two hundred forty-one".