424342121243429 has 2 divisors, whose sum is σ = 424342121243430. Its totient is φ = 424342121243428.

The previous prime is 424342121243377. The next prime is 424342121243471. The reversal of 424342121243429 is 924342121243424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 350014445420929 + 74327675822500 = 18708673^2 + 8621350^2 .

It is a cyclic number.

It is not a de Polignac number, because 424342121243429 - 2⁴⁸ = 142867144532773 is a prime.

It is a super-2 number, since 2×424342121243429² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424342129243429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212171060621714 + 212171060621715.

It is an arithmetic number, because the mean of its divisors is an integer number (212171060621715).

Almost surely, 2^{424342121243429} is an apocalyptic number.

It is an amenable number.

424342121243429 is a deficient number, since it is larger than the sum of its proper divisors (1).

424342121243429 is an equidigital number, since it uses as much as digits as its factorization.

424342121243429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2654208, while the sum is 47.

The spelling of 424342121243429 in words is "four hundred twenty-four trillion, three hundred forty-two billion, one hundred twenty-one million, two hundred forty-three thousand, four hundred twenty-nine".