30121203223 has 2 divisors, whose sum is σ = 30121203224. Its totient is φ = 30121203222.

The previous prime is 30121203209. The next prime is 30121203247. The reversal of 30121203223 is 32230212103.

It is a weak prime.

It is an emirp because it is prime and its reverse (32230212103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30121203223 - 2²⁹ = 29584332311 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30121203223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30121203023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15060601611 + 15060601612.

It is an arithmetic number, because the mean of its divisors is an integer number (15060601612).

Almost surely, 2^30121203223 is an apocalyptic number.

30121203223 is a deficient number, since it is larger than the sum of its proper divisors (1).

30121203223 is an equidigital number, since it uses as much as digits as its factorization.

30121203223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 30121203223 its reverse (32230212103), we get a palindrome (62351415326).

The spelling of 30121203223 in words is "thirty billion, one hundred twenty-one million, two hundred three thousand, two hundred twenty-three".