30121130123111 has 2 divisors, whose sum is σ = 30121130123112. Its totient is φ = 30121130123110.

The previous prime is 30121130123101. The next prime is 30121130123129. The reversal of 30121130123111 is 11132103112103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30121130123111 - 2⁴² = 25723083612007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30121130123101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060565061555 + 15060565061556.

It is an arithmetic number, because the mean of its divisors is an integer number (15060565061556).

Almost surely, 2^{30121130123111} is an apocalyptic number.

30121130123111 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121130123111 is an equidigital number, since it uses as much as digits as its factorization.

30121130123111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 30121130123111 its reverse (11132103112103), we get a palindrome (41253233235214).

The spelling of 30121130123111 in words is "thirty trillion, one hundred twenty-one billion, one hundred thirty million, one hundred twenty-three thousand, one hundred eleven".