121200230203323 has 4 divisors (see below), whose sum is σ = 161600306937768. Its totient is φ = 80800153468880.

The previous prime is 121200230203243. The next prime is 121200230203357. The reversal of 121200230203323 is 323302032002121.

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 121200230203323 - 2⁴⁵ = 86015858114491 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121200230203293 and 121200230203302.

It is not an unprimeable number, because it can be changed into a prime (121200230203363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20200038367218 + ... + 20200038367223.

It is an arithmetic number, because the mean of its divisors is an integer number (40400076734442).

Almost surely, 2^{121200230203323} is an apocalyptic number.

121200230203323 is a deficient number, since it is larger than the sum of its proper divisors (40400076734445).

121200230203323 is an equidigital number, since it uses as much as digits as its factorization.

121200230203323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40400076734444.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 121200230203323 its reverse (323302032002121), we get a palindrome (444502262205444).

The spelling of 121200230203323 in words is "one hundred twenty-one trillion, two hundred billion, two hundred thirty million, two hundred three thousand, three hundred twenty-three".