1123312210321 has 4 divisors (see below), whose sum is σ = 1283785383232. Its totient is φ = 962839037412.

The previous prime is 1123312210313. The next prime is 1123312210367. The reversal of 1123312210321 is 1230122133211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1123312210321 - 2³ = 1123312210313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123312210292 and 1123312210301.

It is not an unprimeable number, because it can be changed into a prime (1123312210921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80236586445 + ... + 80236586458.

It is an arithmetic number, because the mean of its divisors is an integer number (320946345808).

Almost surely, 2^{1123312210321} is an apocalyptic number.

It is an amenable number.

1123312210321 is a deficient number, since it is larger than the sum of its proper divisors (160473172911).

1123312210321 is an equidigital number, since it uses as much as digits as its factorization.

1123312210321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160473172910.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1123312210321 its reverse (1230122133211), we get a palindrome (2353434343532).

The spelling of 1123312210321 in words is "one trillion, one hundred twenty-three billion, three hundred twelve million, two hundred ten thousand, three hundred twenty-one".