30120201112121 has 2 divisors, whose sum is σ = 30120201112122. Its totient is φ = 30120201112120.

The previous prime is 30120201112087. The next prime is 30120201112123. The reversal of 30120201112121 is 12121110202103.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21754425818896 + 8365775293225 = 4664164^2 + 2892365^2 .

It is a cyclic number.

It is not a de Polignac number, because 30120201112121 - 2¹⁰ = 30120201111097 is a prime.

Together with 30120201112123, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30120201112121.

It is not a weakly prime, because it can be changed into another prime (30120201112123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060100556060 + 15060100556061.

It is an arithmetic number, because the mean of its divisors is an integer number (15060100556061).

Almost surely, 2^{30120201112121} is an apocalyptic number.

It is an amenable number.

30120201112121 is a deficient number, since it is larger than the sum of its proper divisors (1).

30120201112121 is an equidigital number, since it uses as much as digits as its factorization.

30120201112121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 30120201112121 its reverse (12121110202103), we get a palindrome (42241311314224).

The spelling of 30120201112121 in words is "thirty trillion, one hundred twenty billion, two hundred one million, one hundred twelve thousand, one hundred twenty-one".