121223130323 has 4 divisors (see below), whose sum is σ = 121347208200. Its totient is φ = 121099052448.

The previous prime is 121223130311. The next prime is 121223130349. The reversal of 121223130323 is 323031322121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323031322121 = 337039 ⋅958439.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121223130323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121223132323) 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, 62037473 + ... + 62039426.

It is an arithmetic number, because the mean of its divisors is an integer number (30336802050).

Almost surely, 2^121223130323 is an apocalyptic number.

121223130323 is a deficient number, since it is larger than the sum of its proper divisors (124077877).

121223130323 is an equidigital number, since it uses as much as digits as its factorization.

121223130323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124077876.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 121223130323 its reverse (323031322121), we get a palindrome (444254452444).

The spelling of 121223130323 in words is "one hundred twenty-one billion, two hundred twenty-three million, one hundred thirty thousand, three hundred twenty-three".