11113200231 has 64 divisors (see below), whose sum is σ = 17859207168. Its totient is φ = 6013865088.

The previous prime is 11113200227. The next prime is 11113200233. The reversal of 11113200231 is 13200231111.

It is a happy number.

It is not a de Polignac number, because 11113200231 - 2² = 11113200227 is a prime.

It is a super-2 number, since 2×11113200231² (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 11113200231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11113200233) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16270816 + ... + 16271498.

It is an arithmetic number, because the mean of its divisors is an integer number (279050112).

Almost surely, 2^11113200231 is an apocalyptic number.

11113200231 is a deficient number, since it is larger than the sum of its proper divisors (6746006937).

11113200231 is a wasteful number, since it uses less digits than its factorization.

11113200231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260.

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

Adding to 11113200231 its reverse (13200231111), we get a palindrome (24313431342).

It can be divided in two parts, 111 and 13200231, that multiplied together give a palindrome (1465225641).

The spelling of 11113200231 in words is "eleven billion, one hundred thirteen million, two hundred thousand, two hundred thirty-one".