423211123429 has 2 divisors, whose sum is σ = 423211123430. Its totient is φ = 423211123428.

The previous prime is 423211123393. The next prime is 423211123441. The reversal of 423211123429 is 924321112324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 309508632225 + 113702491204 = 556335^2 + 337198^2 .

It is a cyclic number.

It is not a de Polignac number, because 423211123429 - 2¹⁵ = 423211090661 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423211123394 and 423211123403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423211123499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211605561714 + 211605561715.

It is an arithmetic number, because the mean of its divisors is an integer number (211605561715).

Almost surely, 2^423211123429 is an apocalyptic number.

It is an amenable number.

423211123429 is a deficient number, since it is larger than the sum of its proper divisors (1).

423211123429 is an equidigital number, since it uses as much as digits as its factorization.

423211123429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The spelling of 423211123429 in words is "four hundred twenty-three billion, two hundred eleven million, one hundred twenty-three thousand, four hundred twenty-nine".