121303323223223 has 4 divisors (see below), whose sum is σ = 121348977468720. Its totient is φ = 121257668977728.

The previous prime is 121303323223211. The next prime is 121303323223249. The reversal of 121303323223223 is 322322323303121.

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 121303323223223 - 2²² = 121303319028919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121303323223223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121303323223253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22827118763 + ... + 22827124076.

It is an arithmetic number, because the mean of its divisors is an integer number (30337244367180).

Almost surely, 2^{121303323223223} is an apocalyptic number.

121303323223223 is a deficient number, since it is larger than the sum of its proper divisors (45654245497).

121303323223223 is an equidigital number, since it uses as much as digits as its factorization.

121303323223223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45654245496.

The product of its (nonzero) digits is 46656, while the sum is 32.

Adding to 121303323223223 its reverse (322322323303121), we get a palindrome (443625646526344).

The spelling of 121303323223223 in words is "one hundred twenty-one trillion, three hundred three billion, three hundred twenty-three million, two hundred twenty-three thousand, two hundred twenty-three".