11201230131 has 32 divisors (see below), whose sum is σ = 18392844288. Its totient is φ = 5904696960.

The previous prime is 11201230099. The next prime is 11201230153. The reversal of 11201230131 is 13103210211.

It is a happy number.

It is not a de Polignac number, because 11201230131 - 2⁵ = 11201230099 is a prime.

It is a super-2 number, since 2×11201230131² (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 11201230131.

It is not an unprimeable number, because it can be changed into a prime (11201230231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 463510 + ... + 487076.

It is an arithmetic number, because the mean of its divisors is an integer number (574776384).

Almost surely, 2^11201230131 is an apocalyptic number.

11201230131 is a deficient number, since it is larger than the sum of its proper divisors (7191614157).

11201230131 is a wasteful number, since it uses less digits than its factorization.

11201230131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25331.

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

Adding to 11201230131 its reverse (13103210211), we get a palindrome (24304440342).

The spelling of 11201230131 in words is "eleven billion, two hundred one million, two hundred thirty thousand, one hundred thirty-one".