434343521081 has 2 divisors, whose sum is σ = 434343521082. Its totient is φ = 434343521080.

The previous prime is 434343521069. The next prime is 434343521231. The reversal of 434343521081 is 180125343434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 428260301056 + 6083220025 = 654416^2 + 77995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434343521081 is a prime.

It is a super-2 number, since 2×434343521081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (434343521021) 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, 217171760540 + 217171760541.

It is an arithmetic number, because the mean of its divisors is an integer number (217171760541).

Almost surely, 2^434343521081 is an apocalyptic number.

It is an amenable number.

434343521081 is a deficient number, since it is larger than the sum of its proper divisors (1).

434343521081 is an equidigital number, since it uses as much as digits as its factorization.

434343521081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 434343521081 in words is "four hundred thirty-four billion, three hundred forty-three million, five hundred twenty-one thousand, eighty-one".