1123220321323 has 16 divisors (see below), whose sum is σ = 1213749918720. Its totient is φ = 1036066622976.

The previous prime is 1123220321317. The next prime is 1123220321369. The reversal of 1123220321323 is 3231230223211.

It is a cyclic number.

It is not a de Polignac number, because 1123220321323 - 2¹⁷ = 1123220190251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123220321393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3086215 + ... + 3430912.

It is an arithmetic number, because the mean of its divisors is an integer number (75859369920).

Almost surely, 2^{1123220321323} is an apocalyptic number.

1123220321323 is a deficient number, since it is larger than the sum of its proper divisors (90529597397).

1123220321323 is a wasteful number, since it uses less digits than its factorization.

1123220321323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6517386.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1123220321323 its reverse (3231230223211), we get a palindrome (4354450544534).

The spelling of 1123220321323 in words is "one trillion, one hundred twenty-three billion, two hundred twenty million, three hundred twenty-one thousand, three hundred twenty-three".