30211110320123 has 2 divisors, whose sum is σ = 30211110320124. Its totient is φ = 30211110320122.

The previous prime is 30211110320107. The next prime is 30211110320201. The reversal of 30211110320123 is 32102301111203.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30211110320123 - 2⁴ = 30211110320107 is a prime.

It is a super-3 number, since 3×30211110320123³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 30211110320095 and 30211110320104.

It is not a weakly prime, because it can be changed into another prime (30211110320623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105555160061 + 15105555160062.

It is an arithmetic number, because the mean of its divisors is an integer number (15105555160062).

Almost surely, 2^{30211110320123} is an apocalyptic number.

30211110320123 is a deficient number, since it is larger than the sum of its proper divisors (1).

30211110320123 is an equidigital number, since it uses as much as digits as its factorization.

30211110320123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 30211110320123 its reverse (32102301111203), we get a palindrome (62313411431326).

The spelling of 30211110320123 in words is "thirty trillion, two hundred eleven billion, one hundred ten million, three hundred twenty thousand, one hundred twenty-three".