412243121 has 2 divisors, whose sum is σ = 412243122. Its totient is φ = 412243120.

The previous prime is 412243103. The next prime is 412243129. The reversal of 412243121 is 121342214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 233753521 + 178489600 = 15289^2 + 13360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412243121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 412243093 and 412243102.

It is not a weakly prime, because it can be changed into another prime (412243129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206121560 + 206121561.

It is an arithmetic number, because the mean of its divisors is an integer number (206121561).

Almost surely, 2^412243121 is an apocalyptic number.

It is an amenable number.

412243121 is a deficient number, since it is larger than the sum of its proper divisors (1).

412243121 is an equidigital number, since it uses as much as digits as its factorization.

412243121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 384, while the sum is 20.

The square root of 412243121 is about 20303.7711029257. The cubic root of 412243121 is about 744.2482220138.

Adding to 412243121 its reverse (121342214), we get a palindrome (533585335).

The spelling of 412243121 in words is "four hundred twelve million, two hundred forty-three thousand, one hundred twenty-one".