11201204231 has 8 divisors (see below), whose sum is σ = 12802066464. Its totient is φ = 9600514560.

The previous prime is 11201204219. The next prime is 11201204233. The reversal of 11201204231 is 13240210211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11201204231 is a prime.

It is a super-2 number, since 2×11201204231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201204233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159311 + ... + 218591.

It is an arithmetic number, because the mean of its divisors is an integer number (1600258308).

Almost surely, 2^11201204231 is an apocalyptic number.

11201204231 is a deficient number, since it is larger than the sum of its proper divisors (1600862233).

11201204231 is an equidigital number, since it uses as much as digits as its factorization.

11201204231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86281.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 11201204231 its reverse (13240210211), we get a palindrome (24441414442).

The spelling of 11201204231 in words is "eleven billion, two hundred one million, two hundred four thousand, two hundred thirty-one".