121220200313023 has 4 divisors (see below), whose sum is σ = 138537371786320. Its totient is φ = 103903028839728.

The previous prime is 121220200312891. The next prime is 121220200313077. The reversal of 121220200313023 is 320313002022121.

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 121220200313023 - 2³⁷ = 121082761359551 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121220200312985 and 121220200313003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121220200013023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8658585736638 + ... + 8658585736651.

It is an arithmetic number, because the mean of its divisors is an integer number (34634342946580).

Almost surely, 2^{121220200313023} is an apocalyptic number.

121220200313023 is a deficient number, since it is larger than the sum of its proper divisors (17317171473297).

121220200313023 is an equidigital number, since it uses as much as digits as its factorization.

121220200313023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17317171473296.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 121220200313023 its reverse (320313002022121), we get a palindrome (441533202335144).

The spelling of 121220200313023 in words is "one hundred twenty-one trillion, two hundred twenty billion, two hundred million, three hundred thirteen thousand, twenty-three".