30121244212123 has 2 divisors, whose sum is σ = 30121244212124. Its totient is φ = 30121244212122.

The previous prime is 30121244212097. The next prime is 30121244212183. The reversal of 30121244212123 is 32121244212103.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30121244212123 - 2⁵ = 30121244212091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30121244212091 and 30121244212100.

It is not a weakly prime, because it can be changed into another prime (30121244212183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060622106061 + 15060622106062.

It is an arithmetic number, because the mean of its divisors is an integer number (15060622106062).

Almost surely, 2^{30121244212123} is an apocalyptic number.

30121244212123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121244212123 is an equidigital number, since it uses as much as digits as its factorization.

30121244212123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 30121244212123 its reverse (32121244212103), we get a palindrome (62242488424226).

The spelling of 30121244212123 in words is "thirty trillion, one hundred twenty-one billion, two hundred forty-four million, two hundred twelve thousand, one hundred twenty-three".