311103232123 has 16 divisors (see below), whose sum is σ = 326138757120. Its totient is φ = 296416411200.

The previous prime is 311103232079. The next prime is 311103232147. The reversal of 311103232123 is 321232301113.

It is a cyclic number.

It is not a de Polignac number, because 311103232123 - 2¹⁷ = 311103101051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311103232094 and 311103232103.

It is not an unprimeable number, because it can be changed into a prime (311103232183) 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, 214143 + ... + 817351.

It is an arithmetic number, because the mean of its divisors is an integer number (20383672320).

Almost surely, 2^311103232123 is an apocalyptic number.

311103232123 is a deficient number, since it is larger than the sum of its proper divisors (15035524997).

311103232123 is a wasteful number, since it uses less digits than its factorization.

311103232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603498.

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

Adding to 311103232123 its reverse (321232301113), we get a palindrome (632335533236).

The spelling of 311103232123 in words is "three hundred eleven billion, one hundred three million, two hundred thirty-two thousand, one hundred twenty-three".