30061611321061 has 4 divisors (see below), whose sum is σ = 30794821353324. Its totient is φ = 29328401288800.

The previous prime is 30061611321037. The next prime is 30061611321067. The reversal of 30061611321061 is 16012311616003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10152443964100 + 19909167356961 = 3186290^2 + 4461969^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30061611321061 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30061611321067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366605016070 + ... + 366605016151.

It is an arithmetic number, because the mean of its divisors is an integer number (7698705338331).

Almost surely, 2^{30061611321061} is an apocalyptic number.

It is an amenable number.

30061611321061 is a deficient number, since it is larger than the sum of its proper divisors (733210032263).

30061611321061 is an equidigital number, since it uses as much as digits as its factorization.

30061611321061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733210032262.

The product of its (nonzero) digits is 3888, while the sum is 31.

Adding to 30061611321061 its reverse (16012311616003), we get a palindrome (46073922937064).

The spelling of 30061611321061 in words is "thirty trillion, sixty-one billion, six hundred eleven million, three hundred twenty-one thousand, sixty-one".