121230330221023 has 4 divisors (see below), whose sum is σ = 124506825632440. Its totient is φ = 117953834809608.

The previous prime is 121230330220991. The next prime is 121230330221041. The reversal of 121230330221023 is 320122033032121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121230330221023 - 2⁵ = 121230330220991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121230330221083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1638247705653 + ... + 1638247705726.

It is an arithmetic number, because the mean of its divisors is an integer number (31126706408110).

Almost surely, 2^{121230330221023} is an apocalyptic number.

121230330221023 is a deficient number, since it is larger than the sum of its proper divisors (3276495411417).

121230330221023 is an equidigital number, since it uses as much as digits as its factorization.

121230330221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3276495411416.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 121230330221023 its reverse (320122033032121), we get a palindrome (441352363253144).

The spelling of 121230330221023 in words is "one hundred twenty-one trillion, two hundred thirty billion, three hundred thirty million, two hundred twenty-one thousand, twenty-three".