420712123229 has 2 divisors, whose sum is σ = 420712123230. Its totient is φ = 420712123228.

The previous prime is 420712123193. The next prime is 420712123243. The reversal of 420712123229 is 922321217024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 409634560729 + 11077562500 = 640027^2 + 105250^2 .

It is a cyclic number.

It is not a de Polignac number, because 420712123229 - 2³⁶ = 351992646493 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420712123529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210356061614 + 210356061615.

It is an arithmetic number, because the mean of its divisors is an integer number (210356061615).

Almost surely, 2^420712123229 is an apocalyptic number.

It is an amenable number.

420712123229 is a deficient number, since it is larger than the sum of its proper divisors (1).

420712123229 is an equidigital number, since it uses as much as digits as its factorization.

420712123229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The spelling of 420712123229 in words is "four hundred twenty billion, seven hundred twelve million, one hundred twenty-three thousand, two hundred twenty-nine".