412124021 has 2 divisors, whose sum is σ = 412124022. Its totient is φ = 412124020.

The previous prime is 412123993. The next prime is 412124029. The reversal of 412124021 is 120421214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 401561521 + 10562500 = 20039^2 + 3250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-412124021 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412124029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206062010 + 206062011.

It is an arithmetic number, because the mean of its divisors is an integer number (206062011).

Almost surely, 2^412124021 is an apocalyptic number.

It is an amenable number.

412124021 is a deficient number, since it is larger than the sum of its proper divisors (1).

412124021 is an equidigital number, since it uses as much as digits as its factorization.

412124021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 412124021 is about 20300.8379383709. The cubic root of 412124021 is about 744.1765422239.

Adding to 412124021 its reverse (120421214), we get a palindrome (532545235).

The spelling of 412124021 in words is "four hundred twelve million, one hundred twenty-four thousand, twenty-one".