12231110131 has 4 divisors (see below), whose sum is σ = 12762897552. Its totient is φ = 11699322712.

The previous prime is 12231110107. The next prime is 12231110149. The reversal of 12231110131 is 13101113221.

It is a happy number.

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 12231110131 - 2²¹ = 12229012979 is a prime.

It is a super-2 number, since 2×12231110131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12231110191) 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, 265893676 + ... + 265893721.

It is an arithmetic number, because the mean of its divisors is an integer number (3190724388).

Almost surely, 2^12231110131 is an apocalyptic number.

12231110131 is a deficient number, since it is larger than the sum of its proper divisors (531787421).

12231110131 is an equidigital number, since it uses as much as digits as its factorization.

12231110131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531787420.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12231110131 its reverse (13101113221), we get a palindrome (25332223352).

The spelling of 12231110131 in words is "twelve billion, two hundred thirty-one million, one hundred ten thousand, one hundred thirty-one".