12131304121 has 8 divisors (see below), whose sum is σ = 12602403584. Its totient is φ = 11665190160.

The previous prime is 12131304089. The next prime is 12131304131. The reversal of 12131304121 is 12140313121.

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 12131304121 - 2⁵ = 12131304089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12131304131) 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, 1241415 + ... + 1251148.

It is an arithmetic number, because the mean of its divisors is an integer number (1575300448).

Almost surely, 2^12131304121 is an apocalyptic number.

It is an amenable number.

12131304121 is a deficient number, since it is larger than the sum of its proper divisors (471099463).

12131304121 is a wasteful number, since it uses less digits than its factorization.

12131304121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492751.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12131304121 its reverse (12140313121), we get a palindrome (24271617242).

The spelling of 12131304121 in words is "twelve billion, one hundred thirty-one million, three hundred four thousand, one hundred twenty-one".