121030120223 has 2 divisors, whose sum is σ = 121030120224. Its totient is φ = 121030120222.

The previous prime is 121030120219. The next prime is 121030120259. The reversal of 121030120223 is 322021030121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121030120223 - 2² = 121030120219 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121030120723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60515060111 + 60515060112.

It is an arithmetic number, because the mean of its divisors is an integer number (60515060112).

Almost surely, 2^121030120223 is an apocalyptic number.

121030120223 is a deficient number, since it is larger than the sum of its proper divisors (1).

121030120223 is an equidigital number, since it uses as much as digits as its factorization.

121030120223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121030120223 its reverse (322021030121), we get a palindrome (443051150344).

The spelling of 121030120223 in words is "one hundred twenty-one billion, thirty million, one hundred twenty thousand, two hundred twenty-three".