30120010061 has 2 divisors, whose sum is σ = 30120010062. Its totient is φ = 30120010060.

The previous prime is 30120009989. The next prime is 30120010069. The reversal of 30120010061 is 16001002103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29766945961 + 353064100 = 172531^2 + 18790^2 .

It is a cyclic number.

It is not a de Polignac number, because 30120010061 - 2¹⁰ = 30120009037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30120010069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060005030 + 15060005031.

It is an arithmetic number, because the mean of its divisors is an integer number (15060005031).

Almost surely, 2^30120010061 is an apocalyptic number.

It is an amenable number.

30120010061 is a deficient number, since it is larger than the sum of its proper divisors (1).

30120010061 is an equidigital number, since it uses as much as digits as its factorization.

30120010061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30120010061 its reverse (16001002103), we get a palindrome (46121012164).

The spelling of 30120010061 in words is "thirty billion, one hundred twenty million, ten thousand, sixty-one".