30012115121 has 2 divisors, whose sum is σ = 30012115122. Its totient is φ = 30012115120.

The previous prime is 30012115097. The next prime is 30012115123. The reversal of 30012115121 is 12151121003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29991312400 + 20802721 = 173180^2 + 4561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30012115121 is a prime.

It is a super-3 number, since 3×30012115121³ (a number of 32 digits) contains 333 as substring.

Together with 30012115123, 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 30012115121.

It is not a weakly prime, because it can be changed into another prime (30012115123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006057560 + 15006057561.

It is an arithmetic number, because the mean of its divisors is an integer number (15006057561).

Almost surely, 2^30012115121 is an apocalyptic number.

It is an amenable number.

30012115121 is a deficient number, since it is larger than the sum of its proper divisors (1).

30012115121 is an equidigital number, since it uses as much as digits as its factorization.

30012115121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 30012115121 its reverse (12151121003), we get a palindrome (42163236124).

The spelling of 30012115121 in words is "thirty billion, twelve million, one hundred fifteen thousand, one hundred twenty-one".