1123221201323 has 4 divisors (see below), whose sum is σ = 1209622832208. Its totient is φ = 1036819570440.

The previous prime is 1123221201301. The next prime is 1123221201343. The reversal of 1123221201323 is 3231021223211.

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 1123221201323 - 2³⁴ = 1106041332139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123221201343) 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, 43200815423 + ... + 43200815448.

It is an arithmetic number, because the mean of its divisors is an integer number (302405708052).

Almost surely, 2^{1123221201323} is an apocalyptic number.

1123221201323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1123221201323 is a deficient number, since it is larger than the sum of its proper divisors (86401630885).

1123221201323 is an equidigital number, since it uses as much as digits as its factorization.

1123221201323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86401630884.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1123221201323 its reverse (3231021223211), we get a palindrome (4354242424534).

The spelling of 1123221201323 in words is "one trillion, one hundred twenty-three billion, two hundred twenty-one million, two hundred one thousand, three hundred twenty-three".