11201230231 has 2 divisors, whose sum is σ = 11201230232. Its totient is φ = 11201230230.

The previous prime is 11201230219. The next prime is 11201230237. The reversal of 11201230231 is 13203210211.

It is a strong prime.

It is an emirp because it is prime and its reverse (13203210211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11201230231 - 2¹⁷ = 11201099159 is a prime.

It is a super-2 number, since 2×11201230231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11201230237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5600615115 + 5600615116.

It is an arithmetic number, because the mean of its divisors is an integer number (5600615116).

Almost surely, 2^11201230231 is an apocalyptic number.

11201230231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11201230231 is an equidigital number, since it uses as much as digits as its factorization.

11201230231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11201230231 its reverse (13203210211), we get a palindrome (24404440442).

The spelling of 11201230231 in words is "eleven billion, two hundred one million, two hundred thirty thousand, two hundred thirty-one".