11230111131 has 4 divisors (see below), whose sum is σ = 14973481512. Its totient is φ = 7486740752.

The previous prime is 11230111127. The next prime is 11230111183. The reversal of 11230111131 is 13111103211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11230111131 - 2² = 11230111127 is a prime.

It is a super-2 number, since 2×11230111131² (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 11230111131.

It is not an unprimeable number, because it can be changed into a prime (11230111111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1871685186 + ... + 1871685191.

It is an arithmetic number, because the mean of its divisors is an integer number (3743370378).

Almost surely, 2^11230111131 is an apocalyptic number.

11230111131 is a deficient number, since it is larger than the sum of its proper divisors (3743370381).

11230111131 is an equidigital number, since it uses as much as digits as its factorization.

11230111131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3743370380.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11230111131 its reverse (13111103211), we get a palindrome (24341214342).

The spelling of 11230111131 in words is "eleven billion, two hundred thirty million, one hundred eleven thousand, one hundred thirty-one".