412442123921 has 2 divisors, whose sum is σ = 412442123922. Its totient is φ = 412442123920.

The previous prime is 412442123917. The next prime is 412442123927. The reversal of 412442123921 is 129321244214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 412278283921 + 163840000 = 642089^2 + 12800^2 .

It is a cyclic number.

It is not a de Polignac number, because 412442123921 - 2² = 412442123917 is a prime.

It is not a weakly prime, because it can be changed into another prime (412442123927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206221061960 + 206221061961.

It is an arithmetic number, because the mean of its divisors is an integer number (206221061961).

Almost surely, 2^412442123921 is an apocalyptic number.

It is an amenable number.

412442123921 is a deficient number, since it is larger than the sum of its proper divisors (1).

412442123921 is an equidigital number, since it uses as much as digits as its factorization.

412442123921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 35.

The spelling of 412442123921 in words is "four hundred twelve billion, four hundred forty-two million, one hundred twenty-three thousand, nine hundred twenty-one".