30506621831029 has 2 divisors, whose sum is σ = 30506621831030. Its totient is φ = 30506621831028.

The previous prime is 30506621830931. The next prime is 30506621831071. The reversal of 30506621831029 is 92013812660503.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15542281216900 + 14964340614129 = 3942370^2 + 3868377^2 .

It is a cyclic number.

It is not a de Polignac number, because 30506621831029 - 2⁷ = 30506621830901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30506621831029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30506621831729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15253310915514 + 15253310915515.

It is an arithmetic number, because the mean of its divisors is an integer number (15253310915515).

Almost surely, 2^{30506621831029} is an apocalyptic number.

It is an amenable number.

30506621831029 is a deficient number, since it is larger than the sum of its proper divisors (1).

30506621831029 is an equidigital number, since it uses as much as digits as its factorization.

30506621831029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 30506621831029 in words is "thirty trillion, five hundred six billion, six hundred twenty-one million, eight hundred thirty-one thousand, twenty-nine".