11201301231 has 16 divisors (see below), whose sum is σ = 15629107200. Its totient is φ = 7122376800.

The previous prime is 11201301197. The next prime is 11201301257. The reversal of 11201301231 is 13210310211.

It is a happy number.

It is not a de Polignac number, because 11201301231 - 2⁷ = 11201301103 is a prime.

It is a super-2 number, since 2×11201301231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11201301231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201301431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208495 + ... + 256656.

It is an arithmetic number, because the mean of its divisors is an integer number (976819200).

Almost surely, 2^11201301231 is an apocalyptic number.

11201301231 is a deficient number, since it is larger than the sum of its proper divisors (4427805969).

11201301231 is a wasteful number, since it uses less digits than its factorization.

11201301231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465526.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11201301231 its reverse (13210310211), we get a palindrome (24411611442).

The spelling of 11201301231 in words is "eleven billion, two hundred one million, three hundred one thousand, two hundred thirty-one".