443240101081 has 2 divisors, whose sum is σ = 443240101082. Its totient is φ = 443240101080.

The previous prime is 443240101039. The next prime is 443240101229. The reversal of 443240101081 is 180101042344.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 413212409856 + 30027691225 = 642816^2 + 173285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-443240101081 is a prime.

It is a super-2 number, since 2×443240101081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (443240101021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221620050540 + 221620050541.

It is an arithmetic number, because the mean of its divisors is an integer number (221620050541).

Almost surely, 2^443240101081 is an apocalyptic number.

It is an amenable number.

443240101081 is a deficient number, since it is larger than the sum of its proper divisors (1).

443240101081 is an equidigital number, since it uses as much as digits as its factorization.

443240101081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 28.

The spelling of 443240101081 in words is "four hundred forty-three billion, two hundred forty million, one hundred one thousand, eighty-one".