12270331 has 4 divisors (see below), whose sum is σ = 12379032. Its totient is φ = 12161632.

The previous prime is 12270329. The next prime is 12270367. The reversal of 12270331 is 13307221.

12270331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12270331 - 2¹ = 12270329 is a prime.

It is a super-2 number, since 2×12270331² = 301122045699122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12270299 and 12270308.

It is not an unprimeable number, because it can be changed into a prime (12270301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54181 + ... + 54406.

It is an arithmetic number, because the mean of its divisors is an integer number (3094758).

Almost surely, 2^12270331 is an apocalyptic number.

12270331 is a deficient number, since it is larger than the sum of its proper divisors (108701).

12270331 is a wasteful number, since it uses less digits than its factorization.

12270331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108700.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 12270331 is about 3502.9032244697. The cubic root of 12270331 is about 230.6492744283.

Adding to 12270331 its reverse (13307221), we get a palindrome (25577552).

The spelling of 12270331 in words is "twelve million, two hundred seventy thousand, three hundred thirty-one".