12310220121 has 8 divisors (see below), whose sum is σ = 16979614080. Its totient is φ = 7923819792.

The previous prime is 12310220071. The next prime is 12310220173. The reversal of 12310220121 is 12102201321.

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

It is not a de Polignac number, because 12310220121 - 2¹⁵ = 12310187353 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12310220121.

It is not an unprimeable number, because it can be changed into a prime (12310225121) 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, 70748305 + ... + 70748478.

It is an arithmetic number, because the mean of its divisors is an integer number (2122451760).

Almost surely, 2^12310220121 is an apocalyptic number.

It is an amenable number.

12310220121 is a deficient number, since it is larger than the sum of its proper divisors (4669393959).

12310220121 is a wasteful number, since it uses less digits than its factorization.

12310220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141496815.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12310220121 its reverse (12102201321), we get a palindrome (24412421442).

The spelling of 12310220121 in words is "twelve billion, three hundred ten million, two hundred twenty thousand, one hundred twenty-one".