121112220323 has 4 divisors (see below), whose sum is σ = 123164969880. Its totient is φ = 119059470768.

The previous prime is 121112220289. The next prime is 121112220331. The reversal of 121112220323 is 323022211121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323022211121 = 3271 ⋅98753351.

It is a cyclic number.

It is not a de Polignac number, because 121112220323 - 2⁶ = 121112220259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121112220295 and 121112220304.

It is not an unprimeable number, because it can be changed into a prime (121112220373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1026374690 + ... + 1026374807.

It is an arithmetic number, because the mean of its divisors is an integer number (30791242470).

Almost surely, 2^121112220323 is an apocalyptic number.

121112220323 is a deficient number, since it is larger than the sum of its proper divisors (2052749557).

121112220323 is an equidigital number, since it uses as much as digits as its factorization.

121112220323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052749556.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121112220323 its reverse (323022211121), we get a palindrome (444134431444).

The spelling of 121112220323 in words is "one hundred twenty-one billion, one hundred twelve million, two hundred twenty thousand, three hundred twenty-three".