11243413161 has 12 divisors (see below), whose sum is σ = 16245344388. Its totient is φ = 7493366304.

The previous prime is 11243413151. The next prime is 11243413169. The reversal of 11243413161 is 16131434211.

11243413161 is a `hidden beast` number, since 1 + 1 + 2 + 4 + 341 + 316 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10616211225 + 627201936 = 103035^2 + 25044^2 .

It is not a de Polignac number, because 11243413161 - 2¹⁰ = 11243412137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11243413169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154830 + ... + 215543.

It is an arithmetic number, because the mean of its divisors is an integer number (1353778699).

Almost surely, 2^11243413161 is an apocalyptic number.

It is an amenable number.

11243413161 is a deficient number, since it is larger than the sum of its proper divisors (5001931227).

11243413161 is a wasteful number, since it uses less digits than its factorization.

11243413161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373752 (or 373749 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

Adding to 11243413161 its reverse (16131434211), we get a palindrome (27374847372).

The spelling of 11243413161 in words is "eleven billion, two hundred forty-three million, four hundred thirteen thousand, one hundred sixty-one".