30329287081 has 2 divisors, whose sum is σ = 30329287082. Its totient is φ = 30329287080.

The previous prime is 30329286937. The next prime is 30329287097. The reversal of 30329287081 is 18078292303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29520737856 + 808549225 = 171816^2 + 28435^2 .

It is a cyclic number.

It is not a de Polignac number, because 30329287081 - 2⁹ = 30329286569 is a prime.

It is a super-2 number, since 2×30329287081² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30329287381) 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, 15164643540 + 15164643541.

It is an arithmetic number, because the mean of its divisors is an integer number (15164643541).

Almost surely, 2^30329287081 is an apocalyptic number.

It is an amenable number.

30329287081 is a deficient number, since it is larger than the sum of its proper divisors (1).

30329287081 is an equidigital number, since it uses as much as digits as its factorization.

30329287081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 30329287081 in words is "thirty billion, three hundred twenty-nine million, two hundred eighty-seven thousand, eighty-one".