1123203230311 has 16 divisors (see below), whose sum is σ = 1187138304000. Its totient is φ = 1060532561088.

The previous prime is 1123203230213. The next prime is 1123203230321. The reversal of 1123203230311 is 1130323023211.

It is a cyclic number.

It is not a de Polignac number, because 1123203230311 - 2¹¹ = 1123203228263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123203230321) 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, 8380750 + ... + 8513716.

It is an arithmetic number, because the mean of its divisors is an integer number (74196144000).

Almost surely, 2^{1123203230311} is an apocalyptic number.

1123203230311 is a deficient number, since it is larger than the sum of its proper divisors (63935073689).

1123203230311 is a wasteful number, since it uses less digits than its factorization.

1123203230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137718.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1123203230311 its reverse (1130323023211), we get a palindrome (2253526253522).

The spelling of 1123203230311 in words is "one trillion, one hundred twenty-three billion, two hundred three million, two hundred thirty thousand, three hundred eleven".