30000121210123 has 2 divisors, whose sum is σ = 30000121210124. Its totient is φ = 30000121210122.

The previous prime is 30000121210099. The next prime is 30000121210127. The reversal of 30000121210123 is 32101212100003.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30000121210123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30000121210097 and 30000121210106.

It is not a weakly prime, because it can be changed into another prime (30000121210127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000060605061 + 15000060605062.

It is an arithmetic number, because the mean of its divisors is an integer number (15000060605062).

Almost surely, 2^{30000121210123} is an apocalyptic number.

30000121210123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30000121210123 is an equidigital number, since it uses as much as digits as its factorization.

30000121210123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30000121210123 its reverse (32101212100003), we get a palindrome (62101333310126).

The spelling of 30000121210123 in words is "thirty trillion, one hundred twenty-one million, two hundred ten thousand, one hundred twenty-three".