12303031121 has 8 divisors (see below), whose sum is σ = 13027935744. Its totient is φ = 11578259520.

The previous prime is 12303031073. The next prime is 12303031133. The reversal of 12303031121 is 12113030321.

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 12303031121 - 2⁶ = 12303031057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12303031121.

It is not an unprimeable number, because it can be changed into a prime (12303031141) 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, 206696 + ... + 259478.

It is an arithmetic number, because the mean of its divisors is an integer number (1628491968).

Almost surely, 2^12303031121 is an apocalyptic number.

It is an amenable number.

12303031121 is a deficient number, since it is larger than the sum of its proper divisors (724904623).

12303031121 is a wasteful number, since it uses less digits than its factorization.

12303031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66511.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12303031121 its reverse (12113030321), we get a palindrome (24416061442).

The spelling of 12303031121 in words is "twelve billion, three hundred three million, thirty-one thousand, one hundred twenty-one".