311030123320103 has 24 divisors (see below), whose sum is σ = 350411618911200. Its totient is φ = 275702956531200.

The previous prime is 311030123320099. The next prime is 311030123320183. The reversal of 311030123320103 is 301023321030113.

It is not a de Polignac number, because 311030123320103 - 2² = 311030123320099 is a prime.

It is a super-2 number, since 2×311030123320103² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311030123320183) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8825003 + ... + 26456396.

It is an arithmetic number, because the mean of its divisors is an integer number (14600484121300).

Almost surely, 2^{311030123320103} is an apocalyptic number.

311030123320103 is a deficient number, since it is larger than the sum of its proper divisors (39381495591097).

311030123320103 is a wasteful number, since it uses less digits than its factorization.

311030123320103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35283239 (or 35283228 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 311030123320103 its reverse (301023321030113), we get a palindrome (612053444350216).

The spelling of 311030123320103 in words is "three hundred eleven trillion, thirty billion, one hundred twenty-three million, three hundred twenty thousand, one hundred three".