12310121113 has 4 divisors (see below), whose sum is σ = 12349703808. Its totient is φ = 12270538420.

The previous prime is 12310121099. The next prime is 12310121177. The reversal of 12310121113 is 31112101321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12310121113 - 2⁹ = 12310120601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12310121183) 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, 19790881 + ... + 19791502.

It is an arithmetic number, because the mean of its divisors is an integer number (3087425952).

Almost surely, 2^12310121113 is an apocalyptic number.

It is an amenable number.

12310121113 is a deficient number, since it is larger than the sum of its proper divisors (39582695).

12310121113 is an equidigital number, since it uses as much as digits as its factorization.

12310121113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39582694.

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

Adding to 12310121113 its reverse (31112101321), we get a palindrome (43422222434).

The spelling of 12310121113 in words is "twelve billion, three hundred ten million, one hundred twenty-one thousand, one hundred thirteen".