12231103121 has 8 divisors (see below), whose sum is σ = 12249648384. Its totient is φ = 12212574480.

The previous prime is 12231103117. The next prime is 12231103151. The reversal of 12231103121 is 12130113221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12231103121 - 2² = 12231103117 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12231103121.

It is not an unprimeable number, because it can be changed into a prime (12231103151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2350895 + ... + 2356091.

It is an arithmetic number, because the mean of its divisors is an integer number (1531206048).

Almost surely, 2^12231103121 is an apocalyptic number.

It is an amenable number.

12231103121 is a deficient number, since it is larger than the sum of its proper divisors (18545263).

12231103121 is a wasteful number, since it uses less digits than its factorization.

12231103121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8311.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12231103121 its reverse (12130113221), we get a palindrome (24361216342).

The spelling of 12231103121 in words is "twelve billion, two hundred thirty-one million, one hundred three thousand, one hundred twenty-one".