30231311230121 has 2 divisors, whose sum is σ = 30231311230122. Its totient is φ = 30231311230120.

The previous prime is 30231311230097. The next prime is 30231311230147. The reversal of 30231311230121 is 12103211313203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23375397405721 + 6855913824400 = 4834811^2 + 2618380^2 .

It is a cyclic number.

It is not a de Polignac number, because 30231311230121 - 2¹⁴ = 30231311213737 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30231311230721) 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 as a sum of consecutive naturals, namely, 15115655615060 + 15115655615061.

It is an arithmetic number, because the mean of its divisors is an integer number (15115655615061).

Almost surely, 2^{30231311230121} is an apocalyptic number.

It is an amenable number.

30231311230121 is a deficient number, since it is larger than the sum of its proper divisors (1).

30231311230121 is an equidigital number, since it uses as much as digits as its factorization.

30231311230121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 30231311230121 its reverse (12103211313203), we get a palindrome (42334522543324).

The spelling of 30231311230121 in words is "thirty trillion, two hundred thirty-one billion, three hundred eleven million, two hundred thirty thousand, one hundred twenty-one".