10312230121 has 4 divisors (see below), whose sum is σ = 10338740100. Its totient is φ = 10285720144.

The previous prime is 10312230119. The next prime is 10312230139. The reversal of 10312230121 is 12103221301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12103221301 = 98801 ⋅122501.

It can be written as a sum of positive squares in 2 ways, for example, as 6271848025 + 4040382096 = 79195^2 + 63564^2 .

It is a cyclic number.

It is not a de Polignac number, because 10312230121 - 2¹ = 10312230119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10312230095 and 10312230104.

It is not an unprimeable number, because it can be changed into a prime (10312230101) 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, 13254406 + ... + 13255183.

It is an arithmetic number, because the mean of its divisors is an integer number (2584685025).

Almost surely, 2^10312230121 is an apocalyptic number.

It is an amenable number.

10312230121 is a deficient number, since it is larger than the sum of its proper divisors (26509979).

10312230121 is an equidigital number, since it uses as much as digits as its factorization.

10312230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26509978.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10312230121 its reverse (12103221301), we get a palindrome (22415451422).

The spelling of 10312230121 in words is "ten billion, three hundred twelve million, two hundred thirty thousand, one hundred twenty-one".