11201232409 has 2 divisors, whose sum is σ = 11201232410. Its totient is φ = 11201232408.

The previous prime is 11201232379. The next prime is 11201232433. The reversal of 11201232409 is 90423210211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10749542400 + 451690009 = 103680^2 + 21253^2 .

It is a cyclic number.

It is not a de Polignac number, because 11201232409 - 2¹¹ = 11201230361 is a prime.

It is not a weakly prime, because it can be changed into another prime (11201232439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600616204 + 5600616205.

It is an arithmetic number, because the mean of its divisors is an integer number (5600616205).

Almost surely, 2^11201232409 is an apocalyptic number.

It is an amenable number.

11201232409 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201232409 is an equidigital number, since it uses as much as digits as its factorization.

11201232409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 11201232409 in words is "eleven billion, two hundred one million, two hundred thirty-two thousand, four hundred nine".