12310421 has 2 divisors, whose sum is σ = 12310422. Its totient is φ = 12310420.

The previous prime is 12310411. The next prime is 12310429. The reversal of 12310421 is 12401321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12180100 + 130321 = 3490^2 + 361^2 .

It is a cyclic number.

It is not a de Polignac number, because 12310421 - 2⁶ = 12310357 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12310396 and 12310405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12310429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155210 + 6155211.

It is an arithmetic number, because the mean of its divisors is an integer number (6155211).

Almost surely, 2^12310421 is an apocalyptic number.

It is an amenable number.

12310421 is a deficient number, since it is larger than the sum of its proper divisors (1).

12310421 is an equidigital number, since it uses as much as digits as its factorization.

12310421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12310421 is about 3508.6209541642. The cubic root of 12310421 is about 230.9001961367.

Adding to 12310421 its reverse (12401321), we get a palindrome (24711742).

The spelling of 12310421 in words is "twelve million, three hundred ten thousand, four hundred twenty-one".